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Official Mk12 Mod0, Mod1, ModH Photo and Discussion Thread (Page 355 of 1226)
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Originally Posted By Gun_Runnin:
What is a PRI Gen II forearm, a PRI Mk12 FSB with the full address, and a #38 SPR Mod. sleeve going for these days? I found these in one of my old parts boxes in the attic and I'm thinking about selling them to fund a Mod 1 build. Forgot to add, it's assembled on an upper that I'll be disassembling tomorrow. All parts are near mint condition. Won't be able to get detailed pics until tomorrow, but for now, I guess, here is my Mk12 Mod 0 clone. Parts list PRI Gen II forearm Douglas/CLE Mk12 barrel Early? PRI Gasbuster Full address, but no elevation wheel, PRI FSB Arms #38 SPR Mod. Sleeve Arms 40-L rear sight (not kosher?) Everything else is non-spec parts that I used on it because it was what I had at the time (pre-college) 
Sorry for the terrible quality |
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Originally Posted By Gun_Runnin:
Forgot to add, it's assembled on an upper that I'll be disassembling tomorrow. All parts are near mint condition. Won't be able to get detailed pics until tomorrow, but for now, I guess, here is my Mk12 Mod 0 clone. Parts list PRI Gen II forearm Douglas/CLE Mk12 barrel Early? PRI Gasbuster Full address, but no elevation wheel, PRI FSB Arms #38 SPR Mod. Sleeve Arms 40-L rear sight (not kosher?) Everything else is non-spec parts that I used on it because it was what I had at the time (pre-college) http://i374.photobucket.com/albums/oo187/Texas-817/IMG_2502_zps8baac25f.jpg Sorry for the terrible quality Originally Posted By Gun_Runnin:
Originally Posted By Gun_Runnin:
What is a PRI Gen II forearm, a PRI Mk12 FSB with the full address, and a #38 SPR Mod. sleeve going for these days? I found these in one of my old parts boxes in the attic and I'm thinking about selling them to fund a Mod 1 build. Forgot to add, it's assembled on an upper that I'll be disassembling tomorrow. All parts are near mint condition. Won't be able to get detailed pics until tomorrow, but for now, I guess, here is my Mk12 Mod 0 clone. Parts list PRI Gen II forearm Douglas/CLE Mk12 barrel Early? PRI Gasbuster Full address, but no elevation wheel, PRI FSB Arms #38 SPR Mod. Sleeve Arms 40-L rear sight (not kosher?) Everything else is non-spec parts that I used on it because it was what I had at the time (pre-college) http://i374.photobucket.com/albums/oo187/Texas-817/IMG_2502_zps8baac25f.jpg Sorry for the terrible quality disregard my earlier post as I thought the front sight was an early wheeled version. |
-Nemo me impune lacesset.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
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Originally Posted By Gun_Runnin:
Forgot to add, it's assembled on an upper that I'll be disassembling tomorrow. All parts are near mint condition. Won't be able to get detailed pics until tomorrow, but for now, I guess, here is my Mk12 Mod 0 clone. Parts list PRI Gen II forearm Douglas/CLE Mk12 barrel Early? PRI Gasbuster Full address, but no elevation wheel, PRI FSB Arms #38 SPR Mod. Sleeve Arms 40-L rear sight (not kosher?) Everything else is non-spec parts that I used on it because it was what I had at the time (pre-college) http://i374.photobucket.com/albums/oo187/Texas-817/IMG_2502_zps8baac25f.jpg Sorry for the terrible quality Originally Posted By Gun_Runnin:
Originally Posted By Gun_Runnin:
What is a PRI Gen II forearm, a PRI Mk12 FSB with the full address, and a #38 SPR Mod. sleeve going for these days? I found these in one of my old parts boxes in the attic and I'm thinking about selling them to fund a Mod 1 build. Forgot to add, it's assembled on an upper that I'll be disassembling tomorrow. All parts are near mint condition. Won't be able to get detailed pics until tomorrow, but for now, I guess, here is my Mk12 Mod 0 clone. Parts list PRI Gen II forearm Douglas/CLE Mk12 barrel Early? PRI Gasbuster Full address, but no elevation wheel, PRI FSB Arms #38 SPR Mod. Sleeve Arms 40-L rear sight (not kosher?) Everything else is non-spec parts that I used on it because it was what I had at the time (pre-college) http://i374.photobucket.com/albums/oo187/Texas-817/IMG_2502_zps8baac25f.jpg Sorry for the terrible quality Was this an MSTN build? Most builds had the non wheel fsb like yours, and the same grips. Upper anodizing looks purplish too. |
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Originally Posted By lancecriminal86:
Was this an MSTN build? Most builds had the non wheel fsb like yours, and the same grips. Upper anodizing looks purplish too. Originally Posted By lancecriminal86:
Originally Posted By Gun_Runnin:
Originally Posted By Gun_Runnin:
What is a PRI Gen II forearm, a PRI Mk12 FSB with the full address, and a #38 SPR Mod. sleeve going for these days? I found these in one of my old parts boxes in the attic and I'm thinking about selling them to fund a Mod 1 build. Forgot to add, it's assembled on an upper that I'll be disassembling tomorrow. All parts are near mint condition. Won't be able to get detailed pics until tomorrow, but for now, I guess, here is my Mk12 Mod 0 clone. Parts list PRI Gen II forearm Douglas/CLE Mk12 barrel Early? PRI Gasbuster Full address, but no elevation wheel, PRI FSB Arms #38 SPR Mod. Sleeve Arms 40-L rear sight (not kosher?) Everything else is non-spec parts that I used on it because it was what I had at the time (pre-college) http://i374.photobucket.com/albums/oo187/Texas-817/IMG_2502_zps8baac25f.jpg Sorry for the terrible quality Was this an MSTN build? Most builds had the non wheel fsb like yours, and the same grips. Upper anodizing looks purplish too. I built it, Upper is a Larue Stealth. The A2 FH was kind've a placeholder to protect the threads until I got a OPS collar/brake I bought/traded-for all the parts 5-7 years ago when I was in high school. |
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Originally Posted By Gun_Runnin: Forgot to add, it's assembled on an upper that I'll be disassembling tomorrow. All parts are near mint condition. Won't be able to get detailed pics until tomorrow, but for now, I guess, here is my Mk12 Mod 0 clone. Parts list PRI Gen II forearm Douglas/CLE Mk12 barrel Early? PRI Gasbuster Full address, but no elevation wheel, PRI FSB Arms #38 SPR Mod. Sleeve Arms 40-L rear sight (not kosher?) Everything else is non-spec parts that I used on it because it was what I had at the time (pre-college) http://i374.photobucket.com/albums/oo187/Texas-817/IMG_2502_zps8baac25f.jpg Sorry for the terrible quality The #40L ain't worth shit to someone using that genII. You could probably get retail price for the FSB. |
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Originally Posted By gunnut003:
Your PRI tube is upside down...full row of holes should be on top. Originally Posted By gunnut003:
Originally Posted By prskiller:
Originally Posted By KOBK:
It has been a long time in the making but I am done. MK12 Mod0 with Gen1 parts MK12 Mod0 with Gen2 parts MK12 Mod1 Mk12 Mod H MK12 Mod0 with PRI new retro parts and an A.R.M.S. #38 AEM 5 (not pictured...just waiting the long wait) <a href="http://s196.photobucket.com/user/nashvillito/media/DSCF3001_zps01ea6185.jpg.html" target="_blank">http://i196.photobucket.com/albums/aa253/nashvillito/DSCF3001_zps01ea6185.jpg</a> Wow! That is quite the collection there. My Mark 12 Mod 0 "wannabee" http://img.photobucket.com/albums/v62/PRSKILLER/IMAG1040.jpg Your PRI tube is upside down...full row of holes should be on top. Wow, thanks. Never did notice that. That is the way I received it so it's the way it continued getting put together. I don't know if the rail it came with was stock but it did not have the lugs and I had to mcgruber some lugs in there and to put the SPR top rail on but when I did the top rail holes did not line up with the lugs. Good thing carbon fiber is super easy to drill. I ended up lengthening the holes in the forearm so I could adjust the forearm rail into position to mount the top rail. I got those holes on top now, thanks gunnut003 
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PSALM 144-1 Blessed be the Lord my strength which teacheth my hands to war, and my fingers to fight:
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Just finished my mk18 build with a can on the way...
Itching to start on a mk12. What is the cheek weld situation on the mod 0? Looks like even with slp rings there would be a good height differences? |
What are you gonna do brother? When 72oz of Cola runs wild on you!
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Originally Posted By pbjunkiee:
Just finished my mk18 build with a can on the way... Itching to start on a mk12. What is the cheek weld situation on the mod 0? Looks like even with slp rings there would be a good height differences? I've got no problems with my ARMS high rings and A1 stock. 
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-Nemo me impune lacesset.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
|
Originally Posted By pbjunkiee:
Just finished my mk18 build with a can on the way... Itching to start on a mk12. What is the cheek weld situation on the mod 0? Looks like even with slp rings there would be a good height differences? Cheekweld is fine on mine with ARMS #22M rings, although with the A1 stock I have to stretch my neck forward just a bit. Thinking about switching back to the fiberlite stock for the shorter LOP. |
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Originally Posted By danimal11:
Ok this is my FIRST time buying a barrel. Is the white oak 100-009-962WB 18" Rifle SPR Barrel (type it in on brownells) the CORRECT barrel for a proper mod 1 build?  Does that have the cuts for the Ops collar? I know that I had to order mine directly from WOA and ask that they put that cut in it. |
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Originally Posted By chenault:
Does that have the cuts for the Ops collar? I know that I had to order mine directly from WOA and ask that they put that cut in it. Originally Posted By chenault:
Originally Posted By danimal11:
Ok this is my FIRST time buying a barrel. Is the white oak 100-009-962WB 18" Rifle SPR Barrel (type it in on brownells) the CORRECT barrel for a proper mod 1 build? Does that have the cuts for the Ops collar? I know that I had to order mine directly from WOA and ask that they put that cut in it. You'll need to go back several pages to confirm but a member here ordered a WOA barrel from Brownells and reported back that it was the correct one. Don't know what specific number it was on Brownells site though. |
-Nemo me impune lacesset.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
|
Originally Posted By Engineer5:
You'll need to go back several pages to confirm but a member here ordered a WOA barrel from Brownells and reported back that it was the correct one. Don't know what specific number it was on Brownells site though. Originally Posted By Engineer5:
Originally Posted By chenault:
Originally Posted By danimal11:
Ok this is my FIRST time buying a barrel. Is the white oak 100-009-962WB 18" Rifle SPR Barrel (type it in on brownells) the CORRECT barrel for a proper mod 1 build? Does that have the cuts for the Ops collar? I know that I had to order mine directly from WOA and ask that they put that cut in it. You'll need to go back several pages to confirm but a member here ordered a WOA barrel from Brownells and reported back that it was the correct one. Don't know what specific number it was on Brownells site though. If so that would be bitchen. WOA makes a mean barrel. |
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Originally Posted By chenault:
If so that would be bitchen. WOA makes a mean barrel. Originally Posted By chenault:
Originally Posted By Engineer5:
Originally Posted By chenault:
Originally Posted By danimal11:
Ok this is my FIRST time buying a barrel. Is the white oak 100-009-962WB 18" Rifle SPR Barrel (type it in on brownells) the CORRECT barrel for a proper mod 1 build? Does that have the cuts for the Ops collar? I know that I had to order mine directly from WOA and ask that they put that cut in it. You'll need to go back several pages to confirm but a member here ordered a WOA barrel from Brownells and reported back that it was the correct one. Don't know what specific number it was on Brownells site though. If so that would be bitchen. WOA makes a mean barrel. Found it. Start reading HERE. |
-Nemo me impune lacesset.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
|
Originally Posted By Engineer5:
I've got no problems with my ARMS high rings and A1 stock. http://img.photobucket.com/albums/v456/Engineer23/MK%2012%20Mod%200/015_zps8389559f.jpg Originally Posted By Engineer5:
Originally Posted By pbjunkiee:
Just finished my mk18 build with a can on the way... Itching to start on a mk12. What is the cheek weld situation on the mod 0? Looks like even with slp rings there would be a good height differences? I've got no problems with my ARMS high rings and A1 stock. http://img.photobucket.com/albums/v456/Engineer23/MK%2012%20Mod%200/015_zps8389559f.jpg I could look at that rig all day... |
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Originally Posted By BurtSaun1049:
Ho. Ho. Ho. Mk 12 Santa was late, but he did visit. New additions: <a href="http://s25.photobucket.com/user/BurtSaun/media/Insurance/20150104_122302_zpsdb19a09d.jpg.html" target="_blank">http://i25.photobucket.com/albums/c99/BurtSaun/Insurance/20150104_122302_zpsdb19a09d.jpg</a> Current progress w/ placeholder cheapo scope: Basically just need a BCG, scope, ARMS #22H, bipod w/ adapter, and AE can. <a href="http://s25.photobucket.com/user/BurtSaun/media/Insurance/20150104_122358_zps7e832b68.jpg.html" target="_blank">http://i25.photobucket.com/albums/c99/BurtSaun/Insurance/20150104_122358_zps7e832b68.jpg</a> Nice! Put that baby together! |
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Originally Posted By Engineer5:
You'll need to go back several pages to confirm but a member here ordered a WOA barrel from Brownells and reported back that it was the correct one. Don't know what specific number it was on Brownells site though. Originally Posted By Engineer5:
Originally Posted By chenault:
Originally Posted By danimal11:
Ok this is my FIRST time buying a barrel. Is the white oak 100-009-962WB 18" Rifle SPR Barrel (type it in on brownells) the CORRECT barrel for a proper mod 1 build? Does that have the cuts for the Ops collar? I know that I had to order mine directly from WOA and ask that they put that cut in it. You'll need to go back several pages to confirm but a member here ordered a WOA barrel from Brownells and reported back that it was the correct one. Don't know what specific number it was on Brownells site though. That was me. Just be sure you buy the 18" RIFLE length 5-SPRR model number from WOA (100-009-962WB) at Brownells. http://www.brownells.com/rifle-parts/barrel-parts/rifle-barrels/ar-15-m16-223-wylde-match-barrels-prod54526.aspx?avs|Manufacturer_1=WHITE%20OAK%20ARMAMENT&aid=27795&source=ir&cm_mmc=affiliate-_-Itwine-_-IR-_-59979 It looks like they've actually added pictures next to each one this time, and you can see the contour for the collar in it. Pic of step for AE collar: 
Mocked up: 
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Originally Posted By Mblades:
Nice! Put that baby together! Originally Posted By Mblades:
Originally Posted By BurtSaun1049:
Ho. Ho. Ho. Mk 12 Santa was late, but he did visit. New additions: <a href="http://s25.photobucket.com/user/BurtSaun/media/Insurance/20150104_122302_zpsdb19a09d.jpg.html" target="_blank">http://i25.photobucket.com/albums/c99/BurtSaun/Insurance/20150104_122302_zpsdb19a09d.jpg</a> Current progress w/ placeholder cheapo scope: Basically just need a BCG, scope, ARMS #22H, bipod w/ adapter, and AE can. <a href="http://s25.photobucket.com/user/BurtSaun/media/Insurance/20150104_122358_zps7e832b68.jpg.html" target="_blank">http://i25.photobucket.com/albums/c99/BurtSaun/Insurance/20150104_122358_zps7e832b68.jpg</a> Nice! Put that baby together! I'm going to really soon, but the barrel needs to go to Adco for some flat black Gunkote 
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I picked up the 18" BA barrel for a mk12 build and it shoots great. I've used federal 50gr hp, 55 fmj bt, and mk262. Out of an average 5 5 shot groups it has held each weight sub moa. I'm very excited about the groups I was getting with the 50gr hp, best was .4". Can't wait to explode some pdogs, will be bringing the mk12 and a ruger m77 22-250.
I waited too long on the BA 16" and wish I picked one up in time. Did a rifle course with the mk12 and wanted to try it next time with a holland. For anyone on the fence about BA barrel quality - rest assured they're nice barrels! Top-o-the page to you. |
I wouldn't say I'm a gun nut... but I'd consider extreme enthusiast.
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Originally Posted By HaveBlue83:
Oh sweet baby jesus. Originally Posted By HaveBlue83:
Oh sweet baby jesus.  Im pretty sure I need this. Yup I need i.
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I missed out too......i was able to hold back even for that killer deal. My rainier arms barrel shoots sub moa if I do my part on bipod/rear bag. It can stay for that. Maybe down the line I can try out a BA. QUESTION: since the MK12 uses mostly this stuff, do you guys have copper/powder fouling from the MK262 Ammo? That 77gr OTM BH stuff (500rnds down the pipe) seems to have fouled the front of my barrel to the point where I'm getting overpressure ejector marks on the head of the case. The scuff style marks. But ONLY on the BH cases. 55gr 5.56 ball and .223 is fine. Im in the basement using sweets and i have done the wet patch scrubbing....and im looking at 12 blue patches! Its not ceasing. Any tips? I clean and clean and its just overpressure marks over and over. my CBC 77gr ammo will be here tomorrow and im gonna check that out when I shoot. |
Please excuse my ways. Iraq Veteran. 45B.
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BH Mk262 is going to be higher pressure ammo to meet velocity specs. I use Butch's Bore Shine for my barrel cleaning from dark barrels on old surplus guns to 416SS match barrels. |
"and the LORD Almighty will shield them. They will destroy and overcome with slingstones...." Zechariah 9:15
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Originally Posted By HaveBlue83: I missed out too......i was able to hold back even for that killer deal. My rainier arms barrel shoots sub moa if I do my part on bipod/rear bag. It can stay for that. Maybe down the line I can try out a BA. QUESTION: since the MK12 uses mostly this stuff, do you guys have copper/powder fouling from the MK262 Ammo? That 77gr OTM BH stuff (500rnds down the pipe) seems to have fouled the front of my barrel to the point where I'm getting overpressure ejector marks on the head of the case. The scuff style marks. But ONLY on the BH cases. 55gr 5.56 ball and .223 is fine. Im in the basement using sweets and i have done the wet patch scrubbing....and im looking at 12 blue patches! Its not ceasing. Any tips? I clean and clean and its just overpressure marks over and over. my CBC 77gr ammo will be here tomorrow and im gonna check that out when I shoot. I have just over 1600rds (xm193, BH, IMI, Hornady 75's & 77's) through my genIII mod0 and I have never stripped the copper from it and it's still sub-MOA. |
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I've got around 1500 with basic bore snake action and its still holding sub moa. Did you check your chamber area and head spacing?
Question: weight of mk12 mod0, mod1 and Holland upper receivers (no glass or rings). Thought I remembered seeing it earlier but couldn't find it after some digging. |
I wouldn't say I'm a gun nut... but I'd consider extreme enthusiast.
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Originally Posted By secretwheelman: QUESTION: since the MK12 uses mostly this stuff, do you guys have copper/powder fouling from the MK262 Ammo? That 77gr OTM BH stuff (500rnds down the pipe) seems to have fouled the front of my barrel to the point where I'm getting overpressure ejector marks on the head of the case. The scuff style marks. But ONLY on the BH cases. 55gr 5.56 ball and .223 is fine. Im in the basement using sweets and i have done the wet patch scrubbing....and im looking at 12 blue patches! Its not ceasing. Any tips? I clean and clean and its just overpressure marks over and over. my CBC 77gr ammo will be here tomorrow and im gonna check that out when I shoot. Originally Posted By secretwheelman: Originally Posted By HaveBlue83: I missed out too......i was able to hold back even for that killer deal. My rainier arms barrel shoots sub moa if I do my part on bipod/rear bag. It can stay for that. Maybe down the line I can try out a BA. QUESTION: since the MK12 uses mostly this stuff, do you guys have copper/powder fouling from the MK262 Ammo? That 77gr OTM BH stuff (500rnds down the pipe) seems to have fouled the front of my barrel to the point where I'm getting overpressure ejector marks on the head of the case. The scuff style marks. But ONLY on the BH cases. 55gr 5.56 ball and .223 is fine. Im in the basement using sweets and i have done the wet patch scrubbing....and im looking at 12 blue patches! Its not ceasing. Any tips? I clean and clean and its just overpressure marks over and over. my CBC 77gr ammo will be here tomorrow and im gonna check that out when I shoot. I have just over 1600rds (xm193, BH, IMI, Hornady 75's & 77's) through my genIII mod0 and I have never stripped the copper from it and it's still sub-MOA. Not really copper as in visible, but this is the first time i used sweets on it. I talked with a comp shooter and he said it could be a powder buildup since bh is a different/dirtier? powder. I just checked with a fresh patch and dry barrel with Hoppes no 9 and the patch now comes out light brown and clean, not dark and blackish brown....so most of that crud must be gone. I just wanted to ask to see what others experianced. It does do sub moa tho. it passes my 1.47 field gauge. Anddd now back to normal MK12 speak :) |
Please excuse my ways. Iraq Veteran. 45B.
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Originally Posted By HaveBlue83: Originally Posted By HaveBlue83: 500rds is not enough to have excessive copper fouling. How often do you strip copper from your barrel?Originally Posted By secretwheelman: Originally Posted By HaveBlue83: I missed out too......i was able to hold back even for that killer deal. My rainier arms barrel shoots sub moa if I do my part on bipod/rear bag. It can stay for that. Maybe down the line I can try out a BA. QUESTION: since the MK12 uses mostly this stuff, do you guys have copper/powder fouling from the MK262 Ammo? That 77gr OTM BH stuff (500rnds down the pipe) seems to have fouled the front of my barrel to the point where I'm getting overpressure ejector marks on the head of the case. The scuff style marks. But ONLY on the BH cases. 55gr 5.56 ball and .223 is fine. Im in the basement using sweets and i have done the wet patch scrubbing....and im looking at 12 blue patches! Its not ceasing. Any tips? I clean and clean and its just overpressure marks over and over. my CBC 77gr ammo will be here tomorrow and im gonna check that out when I shoot. I have just over 1600rds (xm193, BH, IMI, Hornady 75's & 77's) through my genIII mod0 and I have never stripped the copper from it and it's still sub-MOA. Not really copper as in visible, but this is the first time i used sweets on it. I talked with a comp shooter and he said it could be a powder buildup since bh is a different/dirtier? powder. I just checked with a fresh patch and dry barrel with Hoppes no 9 and the patch now comes out light brown and clean, not dark and blackish brown....so most of that crud must be gone. I just wanted to ask to see what others experianced. It does do sub moa tho. it passes my 1.47 field gauge. Anddd now back to normal MK12 speak :) I never, ever, ever strip the copper out of a barrel until accuracy starts to degrade. After a few hundred rounds, I will break out a Dewey rod, and run a few patches of Kroil/Shooter's Choice down the barrel (maybe a few strokes of a brush).
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1 MOA All Day member
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Originally Posted By Skg_Mre_Lght: 500rds is not enough to have excessive copper fouling. How often do you strip copper from your barrel? I have just over 1600rds (xm193, BH, IMI, Hornady 75's & 77's) through my genIII mod0 and I have never stripped the copper from it and it's still sub-MOA. Originally Posted By Skg_Mre_Lght: Originally Posted By HaveBlue83: 500rds is not enough to have excessive copper fouling. How often do you strip copper from your barrel?Originally Posted By secretwheelman: Originally Posted By HaveBlue83: I missed out too......i was able to hold back even for that killer deal. My rainier arms barrel shoots sub moa if I do my part on bipod/rear bag. It can stay for that. Maybe down the line I can try out a BA. QUESTION: since the MK12 uses mostly this stuff, do you guys have copper/powder fouling from the MK262 Ammo? That 77gr OTM BH stuff (500rnds down the pipe) seems to have fouled the front of my barrel to the point where I'm getting overpressure ejector marks on the head of the case. The scuff style marks. But ONLY on the BH cases. 55gr 5.56 ball and .223 is fine. Im in the basement using sweets and i have done the wet patch scrubbing....and im looking at 12 blue patches! Its not ceasing. Any tips? I clean and clean and its just overpressure marks over and over. my CBC 77gr ammo will be here tomorrow and im gonna check that out when I shoot. I have just over 1600rds (xm193, BH, IMI, Hornady 75's & 77's) through my genIII mod0 and I have never stripped the copper from it and it's still sub-MOA. Not really copper as in visible, but this is the first time i used sweets on it. I talked with a comp shooter and he said it could be a powder buildup since bh is a different/dirtier? powder. I just checked with a fresh patch and dry barrel with Hoppes no 9 and the patch now comes out light brown and clean, not dark and blackish brown....so most of that crud must be gone. I just wanted to ask to see what others experianced. It does do sub moa tho. it passes my 1.47 field gauge. Anddd now back to normal MK12 speak :) I never, ever, ever strip the copper out of a barrel until accuracy starts to degrade. After a few hundred rounds, I will break out a Dewey rod, and run a few patches of Kroil/Shooter's Choice down the barrel (maybe a few strokes of a brush). For my mk12, I'll run a boresnake with a shot of CLP on it after each session. Maybe clean the chamber & BCG every 500rds or so. |
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Originally Posted By secretwheelman:
Not really copper as in visible, but this is the first time i used sweets on it. I talked with a comp shooter and he said it could be a powder buildup since bh is a different/dirtier? powder. I just checked with a fresh patch and dry barrel with Hoppes no 9 and the patch now comes out light brown and clean, not dark and blackish brown....so most of that crud must be gone. I just wanted to ask to see what others experianced. It does do sub moa tho. it passes my 1.47 field gauge. Anddd now back to normal MK12 speak :) I never, ever, ever strip the copper out of a barrel until accuracy starts to degrade. After a few hundred rounds, I will break out a Dewey rod, and run a few patches of Kroil/Shooter's Choice down the barrel (maybe a few strokes of a brush). +1 for sure. For my mk12, I'll run a boresnake with a shot of CLP on it after each session. Maybe clean the chamber & BCG every 500rds or so. Originally Posted By secretwheelman:
Originally Posted By Skg_Mre_Lght:
Originally Posted By HaveBlue83:
Originally Posted By secretwheelman:
Originally Posted By HaveBlue83:
I missed out too......i was able to hold back even for that killer deal. My rainier arms barrel shoots sub moa if I do my part on bipod/rear bag. It can stay for that. Maybe down the line I can try out a BA. I have just over 1600rds (xm193, BH, IMI, Hornady 75's & 77's) through my genIII mod0 and I have never stripped the copper from it and it's still sub-MOA. Not really copper as in visible, but this is the first time i used sweets on it. I talked with a comp shooter and he said it could be a powder buildup since bh is a different/dirtier? powder. I just checked with a fresh patch and dry barrel with Hoppes no 9 and the patch now comes out light brown and clean, not dark and blackish brown....so most of that crud must be gone. I just wanted to ask to see what others experianced. It does do sub moa tho. it passes my 1.47 field gauge. Anddd now back to normal MK12 speak :) I never, ever, ever strip the copper out of a barrel until accuracy starts to degrade. After a few hundred rounds, I will break out a Dewey rod, and run a few patches of Kroil/Shooter's Choice down the barrel (maybe a few strokes of a brush). +1 for sure. For my mk12, I'll run a boresnake with a shot of CLP on it after each session. Maybe clean the chamber & BCG every 500rds or so. This is pretty much what I do as well. |
I wouldn't say I'm a gun nut... but I'd consider extreme enthusiast.
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Originally Posted By HaveBlue83:
Thx for the input. Guess I been taking care of the barrel too much. I will let it go with just a boresnake for a bit then. Always wondered that. Watch this guys channel, he explains this way better than I ever could. I've learned more than I can say by watching his videos. https://www.youtube.com/watch?v=_KRUAv3Byp4&index=40&list=PLJUaiRIEduNXoal2_PkBZi0vDCIcEPxUn |
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Originally Posted By secretwheelman:
Leupold will gladly check that serial # for you. Let us know what you find out. Originally Posted By secretwheelman:
Originally Posted By reswob:
Originally Posted By secretwheelman:
Originally Posted By reswob:
No idea. I got this scope new from Euro Optic. Does it say "Leupold" on that ring? Just got off the phone with Leupold CS...verified the serial number and I have legit scope. I asked when they started marking the bands in white and the guy told me the Leupold marking dept. started doing it in 2013. |
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Originally Posted By danimal11: Has anyone used a PSA 18" CHF Stainless Steel A2 Profile 223 Wylde 1:8" Barrel for a mk12 build or is this not a correct barrel? U need a douglas/Centurion Arms for correct...or a kreiger or compas lake douglas, or a Ballistic Advantage barrel ....allll of which u need to have the proper OPS collar step down and special profile for it to be clone correct. Hollands use a 16" middy with the ops collar....Ballistic Advantage usually has these as well. |
Please excuse my ways. Iraq Veteran. 45B.
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Originally Posted By HaveBlue83:
U need a douglas/Centurion Arms for correct...or a kreiger or compas lake douglas, or a Ballistic Advantage barrel ....allll of which u need to have the proper OPS collar step down and special profile for it to be clone correct. Hollands use a 16" middy with the ops collar....Ballistic Advantage usually has these as well. Originally Posted By HaveBlue83:
Originally Posted By danimal11:
Has anyone used a PSA 18" CHF Stainless Steel A2 Profile 223 Wylde 1:8" Barrel for a mk12 build or is this not a correct barrel? U need a douglas/Centurion Arms for correct...or a kreiger or compas lake douglas, or a Ballistic Advantage barrel ....allll of which u need to have the proper OPS collar step down and special profile for it to be clone correct. Hollands use a 16" middy with the ops collar....Ballistic Advantage usually has these as well. ok thanks |
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Originally Posted By HaveBlue83:
U need a douglas/Centurion Arms for correct...or a kreiger or compas lake douglas, or a Ballistic Advantage barrel ....allll of which u need to have the proper OPS collar step down and special profile for it to be clone correct. Hollands use a 16" middy with the ops collar....Ballistic Advantage usually has these as well. Originally Posted By HaveBlue83:
Originally Posted By danimal11:
Has anyone used a PSA 18" CHF Stainless Steel A2 Profile 223 Wylde 1:8" Barrel for a mk12 build or is this not a correct barrel? U need a douglas/Centurion Arms for correct...or a kreiger or compas lake douglas, or a Ballistic Advantage barrel ....allll of which u need to have the proper OPS collar step down and special profile for it to be clone correct. Hollands use a 16" middy with the ops collar....Ballistic Advantage usually has these as well. WOA also works correct? |
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Originally Posted By danimal11: WOA also works correct? Originally Posted By danimal11: Originally Posted By HaveBlue83: Originally Posted By danimal11: Has anyone used a PSA 18" CHF Stainless Steel A2 Profile 223 Wylde 1:8" Barrel for a mk12 build or is this not a correct barrel? U need a douglas/Centurion Arms for correct...or a kreiger or compas lake douglas, or a Ballistic Advantage barrel ....allll of which u need to have the proper OPS collar step down and special profile for it to be clone correct. Hollands use a 16" middy with the ops collar....Ballistic Advantage usually has these as well. WOA also works correct? if they can make u the profile and ops cut with proper twist, then yes u could use them. I cannot say if anyone in here has a WOA barrel...I'm just a wallflower
 . your barrel is the heart of it, along with the trigger and optics......choose wisely! |
Please excuse my ways. Iraq Veteran. 45B.
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Originally Posted By danimal11:
WOA also works correct? Originally Posted By danimal11:
Originally Posted By HaveBlue83:
Originally Posted By danimal11:
Has anyone used a PSA 18" CHF Stainless Steel A2 Profile 223 Wylde 1:8" Barrel for a mk12 build or is this not a correct barrel? U need a douglas/Centurion Arms for correct...or a kreiger or compas lake douglas, or a Ballistic Advantage barrel ....allll of which u need to have the proper OPS collar step down and special profile for it to be clone correct. Hollands use a 16" middy with the ops collar....Ballistic Advantage usually has these as well. WOA also works correct? Yes as long as it has the correct profile for the collar/brake. |
-Nemo me impune lacesset.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
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Originally Posted By HaveBlue83:
if they can make u the profile and ops cut with proper twist, then yes u could use them. I cannot say if anyone in here has a WOA barrel...I'm just a wallflower . your barrel is the heart of it, along with the trigger and optics......choose wisely!
Originally Posted By HaveBlue83:
Originally Posted By danimal11:
Originally Posted By HaveBlue83:
Originally Posted By danimal11:
Has anyone used a PSA 18" CHF Stainless Steel A2 Profile 223 Wylde 1:8" Barrel for a mk12 build or is this not a correct barrel? U need a douglas/Centurion Arms for correct...or a kreiger or compas lake douglas, or a Ballistic Advantage barrel ....allll of which u need to have the proper OPS collar step down and special profile for it to be clone correct. Hollands use a 16" middy with the ops collar....Ballistic Advantage usually has these as well. WOA also works correct? if they can make u the profile and ops cut with proper twist, then yes u could use them. I cannot say if anyone in here has a WOA barrel...I'm just a wallflower . your barrel is the heart of it, along with the trigger and optics......choose wisely!
There are a few here running WOA. Brownells has it. |
-Nemo me impune lacesset.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
-Beware the fury of a patient man.
-Thousands and thousands of laws....All for just ten commandments.
-"alot" is not a word.
|
Originally Posted By lancecriminal86:
WOA barrel, yes they are properly contoured. WOA has been the budget option for a long time now combared to the 400+ for a Douglas. Rainier Match/Ultramatch is another budget option contoured correctly. Also 1:8 twist. Very accurate in my experience. |
Official Mk12 Mod0, Mod1, ModH Photo and Discussion Thread (Page 355 of 1226)
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