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Posted: 12/9/2020 1:02:00 AM EDT
[#1]
Quote HistoryOriginally Posted By Sujumanji: Hey all, 1) I'm wondering what everyone's go-to subsonic bullet choice is? 2) I've only loaded the 208gr Hornady A-Max and I am down to under 500 of those left. I'm told these have been replaced by the 208gr ELD-M bullet but I've never seen any in stock. 3) Does the collective wisdom have any recommendations on a decent sub bullet for plinking and HD? Posts in paragraph form get poor answers. Just the way this site is. 1) 190 gr and above. You don't have a choice right now, get what you can. Don't overlook plated and coated bullets. 2) Again, you don't have a choice right now, get what you can. 3) Plinking is a cheap bullet, I cast my own. HD is for expanding bullets, they are expensive. So not the same bullet. |
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WV, USA
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Posted: 12/9/2020 8:08:57 AM EDT
[#2]
Can anyone who is converting 556/223 brass to 300 BO suggest a jig and saw? What is the go to setup?
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Posted: 12/9/2020 1:23:35 PM EDT
[#4]
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WV, USA
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Posted: 12/9/2020 1:26:39 PM EDT
[#5]
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TX, USA
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Posted: 12/9/2020 1:38:43 PM EDT
[#6]
Alright guys, correct me if anything about this sounds dumb. This will be primarily focused towards subs.
Going to use a bullet in the 190-200 gr weight. Looks like CFE BLK, Lil' Gun, or H4198 are going to be what I hone in on depending on if I can find any. I really like H4198 for the temp stability, but I'm afraid it might be a bit too slow burning for a 6.5" barrel. Lil gun looks nice bc it's versatile. I can use it for subs and supers. And I've read that CFE BLK is quiet. Any other tips, tricks, or pointers before I go balls deep into this? |
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Posted: 12/9/2020 7:53:58 PM EDT
[Last Edit: W_E_G]
[#7]
My advice is don't buy a half-dozen different powders.
Buy one or two at the most. Then decide how much time you really plan to spend with a heavy .30 caliber pistol-class gun. If you really dig the 300BLK pistol thing, spend some money on really high-end expanding bullets. A shot through the lung is end-of story with even the crappiest bullet. Shooting subsonics is kind of cool in a something-new-to-do kind of way. Maybe a few solid applications for subsonics. You may come to share my opinion, which is that that the 300BLK has more utility shooting lightweight, expanding bullets, at around 2000 FPS, from a short barrel with a sound-suppressor. If you run a long barrel, you can start to approach 30-30 numbers. 18.5 grains of H-110 with a 115-grain expanding bullet is effective, and is accurate to long enough range to make the gun be more than just a heavy pistol with a buttstock. I shoot H-110 for supers. I shoot CFE-BLK for subs. I've played with Trail Boss for cat-sneeze loads. They don't cycle the gun and are really just a gimmick you might try once or twice. |
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Posted: 12/9/2020 8:33:19 PM EDT
[Last Edit: compuvette]
[#8]
I stumbled into some Nosler BT 220gr subsonic bullets today at an out of the way gunshop. I went ahead and bought the three boxes they had. I've got IMR4198, CFE Black, R7, and H110 for powder choices. Anybody have any experience with these?
ETA - I'll be using these in a 9" AAC SBR and an 8" Seekins build. |
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TX, USA
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Posted: 12/9/2020 9:48:53 PM EDT
[#9]
Quote HistoryOriginally Posted By W_E_G: My advice is don't buy a half-dozen different powders. Buy one or two at the most. Then decide how much time you really plan to spend with a heavy .30 caliber pistol-class gun. If you really dig the 300BLK pistol thing, spend some money on really high-end expanding bullets. A shot through the lung is end-of story with even the crappiest bullet. Shooting subsonics is kind of cool in a something-new-to-do kind of way. Maybe a few solid applications for subsonics. You may come to share my opinion, which is that that the 300BLK has more utility shooting lightweight, expanding bullets, at around 2000 FPS, from a short barrel with a sound-suppressor. If you run a long barrel, you can start to approach 30-30 numbers. 18.5 grains of H-110 with a 115-grain expanding bullet is effective, and is accurate to long enough range to make the gun be more than just a heavy pistol with a buttstock. I shoot H-110 for supers. I shoot CFE-BLK for subs. I've played with Trail Boss for cat-sneeze loads. They don't cycle the gun and are really just a gimmick you might try once or twice. |
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Posted: 12/9/2020 11:27:10 PM EDT
[#10]
I like the Lehigh 194's.
https://www.lehighdefense.com/308-maximum-expansion-194gr-subsonic-bullet Aint killed anything (except my credit card) with them yet. But 100% sure if its shot though the lung, its got about 2 minutes to live. Even if its just a 147 FMJ. The Lehighs show out of stock right now, but they restock pretty regular. If it floats your boat, get on their "notify me" list and hit it when it comes back. The Gucci bullets probably kill 10% better than a 147 FMJ. Even if they are 200% cooler on the internet. |
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Posted: 12/10/2020 8:51:40 PM EDT
[Last Edit: Er_Mah_Gerd]
[#11]
Have a question that was probably answered some where in the thousands of posts in this thread, but I see you bump the bullet out to the middle of “bump” in 5.56 mags (.250” (?)).
Does that also hold true for .300 blk mags as well? Is it more of a feeding or chambering issue? 110 grain vmax, varmageddon, tac tx. Also 150 or 155 grain hornady fmj All supers How many bell their cases a little for the flat base bullets? Standard? Or only if issues? Thanks |
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Posted: 12/10/2020 8:52:41 PM EDT
[Last Edit: Er_Mah_Gerd]
[#12]
I purchased 3lbs of cfe blk on this 110g data.
(1) Obviously not all 110g are equal but shouldn’t it “work” with any 110g assuming I work it up and can stuff enough in there? (2) Or should I just stuff some of my vmax in there and get something better (not any time soon) for the barnes 110 and or use it for the Hornady 150g? (3) Using no41 primers in 8.3” bbl (4)  Attached File |
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Posted: 12/10/2020 10:42:34 PM EDT
[#13]
Quote HistoryOriginally Posted By Er_Mah_Gerd: Have a question that was probably answered some where in the thousands of posts in this thread, but I see you bump the bullet out to the middle of "bump" in 5.56 mags (.250" (?)). Bullet ogive that measures .250 @ the center of the bump. Read page 1 where I post more on this. Does that also hold true for .300 blk mags as well? Is it more of a feeding or chambering issue? Yes 110 grain vmax, varmageddon, tac tx. Also 150 or 155 grain hornady fmj All supers How many bell their cases a little for the flat base bullets? No bell needed if you chamfer like you should. Standard? Only with cast bullets. Or only if issues? Thanks |
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Posted: 12/10/2020 11:39:48 PM EDT
[#14]
Quote HistoryOriginally Posted By dryflash3: Quote HistoryOriginally Posted By dryflash3: Originally Posted By Er_Mah_Gerd: Have a question that was probably answered some where in the thousands of posts in this thread, but I see you bump the bullet out to the middle of "bump" in 5.56 mags (.250" (?)). Bullet ogive that measures .250 @ the center of the bump. Read page 1 where I post more on this. Does that also hold true for .300 blk mags as well? Is it more of a feeding or chambering issue? Yes 110 grain vmax, varmageddon, tac tx. Also 150 or 155 grain hornady fmj All supers How many bell their cases a little for the flat base bullets? No bell needed if you chamfer like you should. Standard? Only with cast bullets. Or only if issues? Thanks Awesome. Thank you. |
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Posted: 12/11/2020 12:55:11 AM EDT
[#15]
Quote HistoryOriginally Posted By Er_Mah_Gerd: Awesome. Thank you. Quote HistoryOriginally Posted By Er_Mah_Gerd: Originally Posted By dryflash3: Originally Posted By Er_Mah_Gerd: Have a question that was probably answered some where in the thousands of posts in this thread, but I see you bump the bullet out to the middle of "bump" in 5.56 mags (.250" (?)). Bullet ogive that measures .250 @ the center of the bump. Read page 1 where I post more on this. Does that also hold true for .300 blk mags as well? Is it more of a feeding or chambering issue? Yes 110 grain vmax, varmageddon, tac tx. Also 150 or 155 grain hornady fmj All supers How many bell their cases a little for the flat base bullets? No bell needed if you chamfer like you should. Standard? Only with cast bullets. Or only if issues? Thanks Awesome. Thank you.  |
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Posted: 12/12/2020 10:29:27 AM EDT
[#16]
I noticed on the Magpul 300 BO mags they have a little ridge down each side inside of the mag body. Do these do much to help with feeding reliability?
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Posted: 12/12/2020 11:23:53 AM EDT
[#17]
Quote HistoryOriginally Posted By Cycolac: I noticed on the Magpul 300 BO mags they have a little ridge down each side inside of the mag body. Do these do much to help with feeding reliability? Yes. The rib on the dedicated 300BO mags is located different and is shaped different than a 5.56 magazine. A 5.56 magazine has a deeper rib. This pinches the ammunition stack, and can cause excess friction, leading to the sort of malfunction that happens when the ammunition stack can’t keep up with the motion of the bolt. |
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Posted: 12/12/2020 2:26:49 PM EDT
[Last Edit: Bashby]
[#18]
What’s a good place to look for 300 mags? Do they make smaller capacity than 30 round?
ETA: I looked at Magpul’s website and all I see are 30 rounders. |
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Posted: 12/12/2020 4:16:49 PM EDT
[#19]
Quote HistoryOriginally Posted By Bashby: What’s a good place to look for 300 mags? Do they make smaller capacity than 30 round? ETA: I looked at Magpul’s website and all I see are 30 rounders. I have some lancer awm but not sure if they make anything under standard capacity. |
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Posted: 12/13/2020 1:18:58 AM EDT
[Last Edit: Rat_Patrol]
[#20]
I picked up some Hornandy 150 grain FMJBT w/C and some lil gun.
I use Magpul purpose-made blackout mags. Going to be my first attempts with reloads for the 300, how bad did I do? Or did I just buy 1000 training bullets for my Win Mag? I did check, there is a load for this combo on Hodgdon, so I'm hoping this will be a functioning finished product in my ar pistol.  |
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NV, USA
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Posted: 12/13/2020 2:43:26 AM EDT
[#21]
Quote HistoryOriginally Posted By W_E_G: I've been working on a SUB-SONIC load for the M80 bullet. I really like the CFE/BLK powder for 200-grain subsonics. Truly the ideal powder for the 200-grain bullets because of loading density. Anyhow, I decided to pull a load out of my ass (with the help of Quickload) to try to come up with a "plinking" load for the M80 bullets. I shot several rounds of my made-up load yesterday over the chronograph. Loading density is less than ideal (~76%). But everything functioned just fine in the 8" Palmetto upper. Velocity was lower than I had hoped, but I didn't miss it by too much. I'd prefer velocity to be around 1050 fps. I did not shoot for accuracy. I can only vouch that the load shoots minute-of-not-hitting-the-chronograph. I think I'll try 14.0 grains next time. I was so intrigued by this load I had to pick up a pound of CFE BLK to give it a try. Cheap subsonic round sounds good, especially as I can't find the Berry's 200 or 220gr bullet anywhere. Thanks. |
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Posted: 12/13/2020 3:40:30 AM EDT
[#22]
Quote HistoryOriginally Posted By Rat_Patrol: I picked up some Hornandy 150 grain FMJBT w/C and some lil gun. I use Magpul purpose-made blackout mags. Going to be my first attempts with reloads for the 300, how bad did I do? Or did I just buy 1000 training bullets for my Win Mag? I did check, there is a load for this combo on Hodgdon, so I'm hoping this will be a functioning finished product in my ar pistol. I know the 150 gr Spire point's cannelure is in the exact right spot. Doesn't happen often. |
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FL, USA
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Posted: 12/13/2020 7:22:56 AM EDT
[Last Edit: Dogue]
[#23]
Quote HistoryOriginally Posted By Er_Mah_Gerd: I have some lancer awm but not sure if they make anything under standard capacity. Quote HistoryOriginally Posted By Er_Mah_Gerd: Originally Posted By Bashby: What’s a good place to look for 300 mags? Do they make smaller capacity than 30 round? ETA: I looked at Magpul’s website and all I see are 30 rounders. I have some lancer awm but not sure if they make anything under standard capacity. LaRue has Lancer mags for 300BO in 10, 20, and 30 listed on their site. Not sure if any are in stock...I have a couple 30 rounders on backorder there now. But at least you know they're out there somewhere. |
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WV, USA
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Posted: 12/16/2020 6:16:53 PM EDT
[Last Edit: big_aug]
[#24]
I read a lot of good stuff about VV N110. I picked up a bunch of it today from Powder Valley. It was kind of an impulse/panic buy being that 300 BO factory is no where to be found. Accurate 1680 is also unobtainium. I wanted to have a stockpile.
 Good stuff right? Edit: Answered my own question a few pages back. Lots of people suggesting it. |
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Posted: 12/16/2020 7:23:46 PM EDT
[#25]
These guys have Lancer 300BLK 20 rounders showing in stock for the black one for $16. Translucent smoke is OOS were $18.
https://www.kernetactical.com/shop/Lancer-L5AWM-B20-AR-15-300BLK-20-Round-Magazine-p190627811 |
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Posted: 12/16/2020 10:49:40 PM EDT
[#26]
Quote HistoryOriginally Posted By 11C1P: These guys have Lancer 300BLK 20 rounders showing in stock for the black one for $16. Translucent smoke is OOS were $18. https://www.kernetactical.com/shop/Lancer-L5AWM-B20-AR-15-300BLK-20-Round-Magazine-p190627811 Thank you sir! |
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Posted: 12/16/2020 10:57:36 PM EDT
[#27]
Quote HistoryOriginally Posted By PIDDLER: Thank you sir!  Found that site in another thread earlier & saw those but couldn't remember what thread someone was looking for them. Luckily someone brought this one up for me to remember. 
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USA
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Posted: 12/17/2020 6:33:26 PM EDT
[#28]
Both of my 300BO will use 5.56 mags with 110 gr bullets with zero issues. The 190 sub heavier bullets need a specific 300 BO mag to shoot without issues. Have 12.5 inch barreled AR's that both use this setup.
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Posted: 12/17/2020 7:42:39 PM EDT
[#29]
Quote HistoryOriginally Posted By Bearcat24: Both of my 300BO will use 5.56 mags with 110 gr bullets with zero issues. The 190 sub heavier bullets need a specific 300 BO mag to shoot without issues. Have 12.5 inch barreled AR's that both use this setup. So long as your 300BO bullets do not extend far enough forward in the magazine to contact the fatter forward rib on a 5.56 mag, your chances of a misfeed with 300BO are reduced. |
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Posted: 12/21/2020 1:15:31 PM EDT
[#30]
Any big advantages of Barnes 110g TTSX over 110g Tac-TX?
I was able to get a couple hundred 110g TTSX bullets for use in short (100 yards or less) hunting for hogs and such. 10" barrel. At probably no more than 5-10 shots taken per year, once I get a load worked up and the scope zero'd, this will last a LONG time. Is there any real advantage to the TTSX? I have H-110 and Lil Gun on hand. |
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NC, USA
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Posted: 12/21/2020 3:02:06 PM EDT
[#31]
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Posted: 12/21/2020 5:48:43 PM EDT
[Last Edit: Er_Mah_Gerd]
[#32]
Quote HistoryOriginally Posted By Landshark9025: Any big advantages of Barnes 110g TTSX over 110g Tac-TX? I was able to get a couple hundred 110g TTSX bullets for use in short (100 yards or less) hunting for hogs and such. 10" barrel. At probably no more than 5-10 shots taken per year, once I get a load worked up and the scope zero'd, this will last a LONG time. Is there any real advantage to the TTSX? I have H-110 and Lil Gun on hand. From what I understand is that they are the same bullet, but a tad different for .mill applications. (Tip color (?) and more cannelures (?)) No idea for sure as it has been a bit. Seems odd Eta link: https://www.ar15.com/forums/armory/Whats_the_functional_difference_between_Barnes_TSX_and_TAC_X_bullets_/42-430020/ |
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Posted: 12/21/2020 6:35:16 PM EDT
[#33]
OK. Thanks. Based on the images on MidwayUSA's site they look completely different.
Guess just marketing.  Attached File |
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Posted: 12/21/2020 7:48:44 PM EDT
[#34]
Quote HistoryOriginally Posted By Landshark9025: OK. Thanks. Based on the images on MidwayUSA's site they look completely different. Guess just marketing.https://www.AR15.Com/media/mediaFiles/365808/Screenshot_20201221-173237_2_png-1742014.JPG I’m a sucker, I payed more for the tactical 250/ $75 pulled. Only for defense and hunting possibly. |
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WV, USA
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Posted: 12/21/2020 8:17:08 PM EDT
[#35]
Quote HistoryOriginally Posted By Er_Mah_Gerd: I’m a sucker, I payed more for the tactical 250/ $75 pulled. Only for defense and hunting possibly. Source? |
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Posted: 12/21/2020 9:36:48 PM EDT
[#36]
Quote HistoryOriginally Posted By big_aug: Source? Quote HistoryOriginally Posted By big_aug: Originally Posted By Er_Mah_Gerd: I’m a sucker, I payed more for the tactical 250/ $75 pulled. Only for defense and hunting possibly. Source? It was American reloading I think. I’m sure it’s not super common as I’d been watching for months for the tac-tx to come in stock. They popped up, I bit. |
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WV, USA
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Posted: 12/21/2020 10:53:36 PM EDT
[#37]
Quote HistoryOriginally Posted By Er_Mah_Gerd: It was American reloading I think. I’m sure it’s not super common as I’d been watching for months for the tac-tx to come in stock. They popped up, I bit. Ahh got it. Thanks. I'll keep an eye out. I read that the Tac-TX expand at lower velocity and are better for 300 BLK than the TTSX. |
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Posted: 12/22/2020 5:30:12 PM EDT
[Last Edit: lilMAC25]
[#38]
Quote HistoryOriginally Posted By Landshark9025: Any big advantages of Barnes 110g TTSX over 110g Tac-TX? I was able to get a couple hundred 110g TTSX bullets for use in short (100 yards or less) hunting for hogs and such. 10" barrel. At probably no more than 5-10 shots taken per year, once I get a load worked up and the scope zero'd, this will last a LONG time. Is there any real advantage to the TTSX? I have H-110 and Lil Gun on hand. My understanding is that the TTSX needs much higher velocity to expand reliably. .308 velocities. The TACTX expand down to much lower velocities (1250 or so). |
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Posted: 12/22/2020 6:35:49 PM EDT
[Last Edit: Er_Mah_Gerd]
[#39]
Quote HistoryOriginally Posted By W_E_G: 100% full case (17.3 grains) will give you about 1360 FPS and around 34,000 PSI pressure. The best use for CFE-BLK in 300BLK is for subsonics, but it will certainly work with the load I mentioned. From my 8-inch barrel gun, I get 1000-1050 fps with 12.3 grains and the 145-150 grain bullets. Quote HistoryOriginally Posted By W_E_G: Originally Posted By derek1387: Anyone have any data for CFE BLK with Hornady 150gr FMJ for plinking rounds Went off the 150gr Hornady IB round info but want to double check 100% full case (17.3 grains) will give you about 1360 FPS and around 34,000 PSI pressure. The best use for CFE-BLK in 300BLK is for subsonics, but it will certainly work with the load I mentioned. From my 8-inch barrel gun, I get 1000-1050 fps with 12.3 grains and the 145-150 grain bullets. I finally found some info for the Hornady 150 fmj and CFEBLK! Weg, I have 19.3 g (beam scale, shooting for 19g but checked with digi) and seated to .250” to mid bump. The mark from seater seems more pronounced in pic. Don’t feel any distortion. I am worried about seating it so deep though. Sounds like you can’t get enough in the case to be dangerous? (Johnnys reloading bench) What do you think? Start lower? Use 19.3 g on the top end? Obviously getting a diff powder would probably be better but have 3# for plinking. I just worry as I am not going off known recipe. 41 primer .300 blk brass 8.3” bbl Plinking Supers o.a.l 2.40” Thanks @W_E_G  Attached File |
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Posted: 12/22/2020 7:17:11 PM EDT
[Last Edit: W_E_G]
[#40]
Quote HistoryOriginally Posted By Er_Mah_Gerd: I finally found some info for the Hornady 150 fmj o.a.l 2.40” Thanks @W_E_G https://www.AR15.Com/media/mediaFiles/334937/7267B01D-C70C-417D-BC54-C8C3C8ECE292_jpe-1743613.JPG Please go to https://www.hornady.com/bullets/rifle/#!/ and tell me what is the product number of the Hornady bullet you are using. With that, I can tell you what Quickload says about the appropriate OAL for that bullet when loaded in 300BO, and what will be the expected pressure/velocity. |
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Posted: 12/22/2020 7:37:08 PM EDT
[Last Edit: W_E_G]
[#41]
@Er_Mah_Gerd
From the git-go, you have a problem with your Overall Length. You said 2.400" No way 2.400" OAL is working for 300BO with a 150 FMJ  Attached File |
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Posted: 12/22/2020 7:38:44 PM EDT
[#42]
@ Er_Mah_Gerd
What you are more likely looking at for a 150 FMJ in 300BO is a relationship and length such as this.  Attached File |
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Posted: 12/22/2020 7:47:14 PM EDT
[#43]
@ Er_Mah_Gerd
So realistically we will say 2.150" OAL for a 150 FMJ in 300BO. If you want to load supers with CFEBLK in 300BO, and with 2.150" OAL, and you load to 100% loading density (no air left in the case) you will make about 1360 fps out of an 8" barrel. This is obviously a low-pressure load. I don't load supers with CFEBLK. But you are welcome to use it as you wish. It is impossible to put too much CFEBLK in a 300BO case with a 150-grain bullet to get into any trouble with pressure.  Attached File |
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Posted: 12/22/2020 7:48:45 PM EDT
[#44]
Quote HistoryOriginally Posted By W_E_G: Please go to https://www.hornady.com/bullets/rifle/#!/ and tell me what is the product number of the Hornady bullet you are using. With that, I can tell you what Quickload says about the appropriate OAL for that bullet when loaded in 300BO, and what will be the expected pressure/velocity. #3037 |
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Posted: 12/22/2020 7:49:27 PM EDT
[Last Edit: Er_Mah_Gerd]
[#45]
Quote HistoryOriginally Posted By W_E_G: @ Er_Mah_Gerd What you are more likely looking at for a 150 FMJ in 300BO is a relationship and length such as this. https://www.AR15.Com/media/mediaFiles/105614/right_jpg-1743748.JPG Yes, 2.04”? I am much better with a tape measure  Attached File |
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Posted: 12/22/2020 7:50:11 PM EDT
[#46]
I only use CFEBLK with 150's to load subs.
This load works in my 8.5" Palmetto upper just dandy.  Attached File |
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Posted: 12/22/2020 7:58:34 PM EDT
[#47]
Quote HistoryOriginally Posted By W_E_G: I only use CFEBLK with 150's to load subs. This load works in my 8.5" Palmetto upper just dandy. https://www.AR15.Com/media/mediaFiles/105614/150_subsonic_jpg-1743772.JPG Are you mainly a sub guy or just anything fun? I keep seeing powders then, when I can find them, I find they are not ideal. Cfeblk good for subs, h110 gets touchy at certain levels... Could you recommend a powder that works good and safe for supers 150g and under? But put some stank on a 110 g barnes out of an 8.3” bbl? (Hunting) Thanks for the help |
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Posted: 12/22/2020 8:20:43 PM EDT
[Last Edit: W_E_G]
[#48]
@ Er_Mah_Gerd
I got into 300BO because of curiosity. Really nothing more. I don't know why people squawk about H110. Its fine powder. Except if you are all hell-fired determined to put as much of it as humanly possible into a case, and then proclaim its "peaky" or some such nonsense. Or they pout about how it doesn't give ENOUGH velocity in their particular application. These reports are always anecdotal, and in my opinion just reflect the ignorance and recklessness of the people giving the reports. An extra 100 FPS isn't worth beating the shit out of the gun or causing malfunctions. Ratchet that shit back and call it good. If you gotta have high velocity in .30 caliber get a REAL .308. I experimented with as much as 17.0 grains H-110 with the 150. Chronograph said 1899 FPS. Too hot. Fucked up the rims of the cases. I ratcheted it down to 15.0 grains, and the load works fine in the gun, and doesn't fuck up the brass. Have not chronographed that load yet, but I suspect its running around 1700 FPS. I do shoot the Lehigh 115 "Controlled Chaos" I'm at 99% load density with 18.5 grains H-110 I'm making 1900 FPS with that bullet out of the 8.5" Palmetto upper. I haven't shot your Barnes 110, so no reliable info on that. I see Barnes makes a bunch of different .30 caliber 110-grain bullets. I'm gonna say 18.5 grains H-110 will work dandy with that Barnes bullet too. If it starts fucking up your case rims, ratchet that shit down. |
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Posted: 12/22/2020 8:45:29 PM EDT
[#49]
Quote HistoryOriginally Posted By W_E_G: @ Er_Mah_Gerd I got into 300BO because of curiosity. Really nothing more. I don't know why people squawk about H110. Its fine powder. Except if you are all hell-fired determined to put as much of it as humanly possible into a case, and then proclaim its "peaky" or some such nonsense. Or they pout about how it doesn't give ENOUGH velocity in their particular application. These reports are always anecdotal, and in my opinion just reflect the ignorance and recklessness of the people giving the reports. An extra 100 FPS isn't worth beating the shit out of the gun or causing malfunctions. Ratchet that shit back and call it good. If you gotta have high velocity in .30 caliber get a REAL .308. I experimented with as much as 17.0 grains H-110 with the 150. Chronograph said 1899 FPS. Too hot. Fucked up the rims of the cases. I ratcheted it down to 15.0 grains, and the load works fine in the gun, and doesn't fuck up the brass. Have not chronographed that load yet, but I suspect its running around 1700 FPS. I do shoot the Lehigh 115 "Controlled Chaos" I'm at 99% load density with 18.5 grains H-110 I'm making 1900 FPS with that bullet out of the 8.5" Palmetto upper. I haven't shot your Barnes 110, so no reliable info on that. I see Barnes makes a bunch of different .30 caliber 110-grain bullets. I'm gonna say 18.5 grains H-110 will work dandy with that Barnes bullet too. If it starts fucking up your case rims, ratchet that shit down. I would just like to distance myself from anything that could cause an issue when I’m dicking with other things like not seating bullets to “published” length (.250” at bump) creeps me out. I’m not chasing speed but would like a tad hotter round for deer. Plinking as cheap on powder as possible  The Barnes tac-tx is what I plan on using. But I think I can load that to published depth as it was “made” to work in gas guns? Thanks for the help |
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NC, USA
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Posted: 12/28/2020 10:11:07 PM EDT
[#50]
I'm having some trouble with my 168gr BTHP loads. Hopefully someone can point me in the right direction.
I made up 5 rounds of each charge weight of Lil Gun: 14.0, 14.3, 14.6, 14.9, 15.2. All of the rounds chambered and shot when using the charging handle for the first round, but NONE of them picked up the next round from the magazine and chambered. Not once, not any powder weight. Other details: 16 inch barrel, don't know details of the gas system, COL 2.1", CCI SR primers, a variety of brass. I'm using Magpul 300 BLK mags. I also shot some Remington 155gr factory ammo which worked perfectly. My 125 gr Nosler Ballistic Tips also work and cycle fine with 19.0 gr Lil Gun under them. What's happening? It seems something fundamental, which it probably is, but I'm stumped. Thanks for your advice and enlightenment. |
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