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25-223 (Page 31 of 46)
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Link Posted: 3/19/2013 4:30:10 PM EDT
[#1]
I would be interested in this caliber.  I have been playing with ARs and reloading since the early 70s.  I have no interest in building an upper, so I would be interested in buying one already assembled.  Dies would also be required, I expect.  Do you have any ideas where I might find something like that?  I would be especially interested in a LW configuration.  Thanks for the leads.
Link Posted: 3/19/2013 8:55:48 PM EDT
[#2]
Dies are easy, contact 320pf for upper setup.

dies you need a redding FL "s" bushing die and a 223 seater
Link Posted: 4/26/2013 2:05:26 PM EDT
[#3]
So its varmint time again whos been doin some killin?  


Link Posted: 4/29/2013 12:50:01 AM EDT
[#4]
Originally Posted By scatterbrains:
So its varmint time again whos been doin some killin?  




I haven't taken mine out for awhile, but assuming I get drawn this year I will be taking it for mule deer.  My rifle is in pieces right now because I am doing a rebuild and new duracoat job. I'll post pics when i'm done. My deer load is a 100gr partition over 24.0 of AA2200.
Link Posted: 5/2/2013 2:05:05 AM EDT
[Last Edit: dk223] [#5]
I haven't had mine out in a couple months, last time it was at the range I was ringing the 675 plate pretty consistent.  I just put a 20MOA base on it should be able to get 1000 out of it now with MOA to spare on my scope.  Also got in a bunch of the 85gr Nosler Ballistic Tips I need to work up a load with because I cant find 100gr NBTs for a good price and the 75gr V-max really gets blown around in the wind.

P-dogs aren't out, where I can shoot them anyways, and the population isn't looking promising this year.  Might be stuck with steel targets this summer.
Link Posted: 5/2/2013 7:50:31 AM EDT
[#6]
Hi dk223,

It sounds like you survived the winter.

I know that reloading components are hard to find right now but  I have been shooting the Sierra 90 g BlitzKing and 100 g MatchKings.  I think that you might like them even better than the Nosler 100 g Ballistic Tips. Both of hese bullets resist the wind pretty well.

Here are some specs. so you will not have to look them up

Nos. 100g BT
O.A.L.= 1.115
B.C.=0.392


Nos. 85g BT
O.A.L.= 1.000
B.C.=0.329


Sie. 90g BK
O.A.L.= 1.066
B.C.=
0.388 @  >3100 fps
0.375 @  2900-3100 fps
0.345 @  2400-2900 fps
0.330 @  < 2400 fps

Sie. 100g MK
O.A.L.= 1.072
B.C.=
0.394 @  >3250 fps
0.386 @  2800-3250 fps
0.376 @  2800-2350 fps
0.372 @  < 2350 fps

Good Luck with your shooting this season


Originally Posted By dk223:
I haven't had mine out in a couple mounts, last time it was at the range I was ringing the 675 plate pretty consistent.  I just put a 20MOA base on it should be able to get 1000 out of it now with MOA to spare on my scope.  Also got in a bunch of the 85gr Nosler Ballistic Tips I need to work up a load with because I cant find 100gr NBTs for a good price and the 75gr V-max really gets blown around in the wind.

P-dogs aren't out, where I can shoot them anyways, and the population isn't looking promising this year.  Might be stuck with steel targets this summer.

Link Posted: 5/2/2013 8:42:00 PM EDT
[#7]
Dk if you need some load data for the 85's shoot me a PM i think i may have had the most exp. with them in the 25-223. My rifle shoots very well with the 85's.

On a side note 320,
have you built a 20" plus gun yet?  I was thinking i may try a 22" barrel if you think its feasible.
Link Posted: 5/2/2013 11:10:11 PM EDT
[#8]
Hi Scatterbrains,

You must be clairvoyant.  I have been thinking of building a 24 inch barrel for myself for longrange shooting.

I have been playing with QuickLoad and it looks like thata 24-inch will  push the 85 Noslers to about 2950 fps.  
from a 24-inch barrel.  This velocity is right in line with dk223's post (5-12-2012) on the 100 g Sierra MK at about 2750fps from his 23.5 in. bolt gun. This is pretty much what you can get with a 24-inch barrel 250-3000 Savage loaded to SAAMI pressure.

I have been reading up on the 24-inch barrels used for the  6.5 Grendal. The Grendal guys are using 24-inch barrels with a rifle gas port. to great success. So I am going to do a 24-inch barrel with a rifle gas port and no muzzle ornements.  If it does not work out I can alway cut it back to 22 or 20.  

I have been  commissioned for  two 12.5 barrels,  two 14.5 inch barrels,  two 16.5 inch barrels, and one 20 inch barrel. So I was thinking of getting a 24-inch barrel done with this batch for myself.

If you are interested I can do another barrel in either 24 or 22. Let me know one way or the other.

320pf


Originally Posted By scatterbrains:
Dk if you need some load data for the 85's shoot me a PM i think i may have had the most exp. with them in the 25-223. My rifle shoots very well with the 85's.

On a side note 320,
have you built a 20" plus gun yet?  I was thinking i may try a 22" barrel if you think its feasible.
Link Posted: 5/3/2013 1:52:26 PM EDT
[#9]
Nice i know weve talked about a 24" in the past. I am in the middle of building my savage ATM. So i cant funnel the $$ to a 24" right now.

I am def interested in trying a 24" barrel with the mid weight contour and recessed crown.

PM inbound
Link Posted: 5/5/2013 8:15:45 PM EDT
[#10]
Stuck a 6-25x56 Millett on the bolt gun today to try out.  Went out to the range got it zeroed than dialed up for the 500 yard plate shot that a couple times dialed it back down to zero and was right where I started.  With the 20moa base and this Millett scope I should be able to reach 1000 yards with it.  With an 85gr NBT at 2900fps only takes about 45MOA to get there.  I need to work up an 85gr load now and give it a try.  100gr SMK's or NBTs would be better but I have a bunch of these 85gr NBTs now.

Has anyone shot there 25-223 that far yet?
Link Posted: 5/5/2013 8:58:43 PM EDT
[#11]
Originally Posted By dk223:
Stuck a 6-25x56 Millett on the bolt gun today to try out.  Went out to the range got it zeroed than dialed up for the 500 yard plate shot that a couple times dialed it back down to zero and was right where I started.  With the 20moa base and this Millett scope I should be able to reach 1000 yards with it.  With an 85gr NBT at 2900fps only takes about 45MOA to get there.  I need to work up an 85gr load now and give it a try.  100gr SMK's or NBTs would be better but I have a bunch of these 85gr NBTs now.

Has anyone shot there 25-223 that far yet?


Nope. I think that you are the only one that has really stretched the 25-223 that far.  

The longest shot that I have take with mine is 300-310 yrds with an unmagnified EOTech on LaRue targets in a couple of different a 3-gun matchs. In the wind the 100 g Sierra MKs and 90 g BK worked much better than the Sierra 70 g BK.  With the EOTech I could not tell which one is better between the 100 g Sierra MKs or 90 g BK.
Link Posted: 5/6/2013 11:22:07 AM EDT
[#12]
Ive gone to 637 as a max so far, that is 18.2moa at 18*F, or there abouts. Consistant hits as long as i held right for the wind.

I dont think my 16" will hit at 1k i go transonic at 780yds and need 48moa at 1kyds its going 45acp speed by then LOL
Link Posted: 5/10/2013 12:00:29 AM EDT
[Last Edit: dk223] [#13]
Got to the range tonight with some test loads in my bolt action.

85gr NBT
H335
Wolf Small Rifle Magnum
2.450" OAL

26.7
27.0
27.3
27.6
27.9

All groups were roughly the same for 3 shots at 100 yards in the 5/8" range.  I'm going to run with 27.6gr for a while and see how it does at longer ranges.  Cases looked good at 27.9gr and there was no pressure signs screaming out at me so I'm guessing I could go a little bit hotter if I wanted.  I'm going to chrono the 27.6gr load and do some longer range shooting.
Link Posted: 5/10/2013 10:12:06 AM EDT
[#14]
Nice,  the highest charge my AR has seen is 28gr, i think i shot 1  yup serious PSI signs. anything w/ the 85s for me are compressed after 27gr.
Link Posted: 5/11/2013 12:38:45 PM EDT
[#15]
Looks like Sharps is still working on the .25-45

http://ipaper.ipapercms.dk/AGPublishing/INTERNATIONAL/TNM4/?Page=83

87 gr Speer hotcore at 3,000 fps from a 16" barrel.
Link Posted: 5/12/2013 11:45:04 AM EDT
[#16]
Originally Posted By VaFish:
Looks like Sharps is still working on the .25-45

http://ipaper.ipapercms.dk/AGPublishing/INTERNATIONAL/TNM4/?Page=83

87 gr Speer hotcore at 3,000 fps from a 16" barrel.


3000fps is a bold statement.  I've gotten to around 2750fps and I start to get pressure signs.  It will be interesting to watch.
Link Posted: 5/12/2013 9:01:12 PM EDT
[Last Edit: 320pf] [#17]
Originally Posted By Altair:
Originally Posted By VaFish:
Looks like Sharps is still working on the .25-45

http://ipaper.ipapercms.dk/AGPublishing/INTERNATIONAL/TNM4/?Page=83

87 gr Speer hotcore at 3,000 fps from a 16" barrel.


3000fps is a bold statement.  I've gotten to around 2750fps and I start to get pressure signs.  It will be interesting to watch.



Hi Altair-

"bold statement."

You are being generous. How about flat out BS. It may be accidental, but none the less it is BS.

With my my 20" barrel I can push Speer 87 g HotCors to 2900 fps. In my 16-inch barrel, I can get the 87 HotCors to 2780-2800 fps.

My loads for the Speer 87 g HotCors are pretty much exactly what QuickLoad predicts for maximum loads (52000 CPU/62000psi) for the 25-223Ar* .

I ran the numbers for the 25x45 Shraps and  the 25-223Ar and to get 3000 fps from a 16-inch barrel your will be at 60000 CPU/76000 psi.  This is at or above proof loads.

Both cases have the same case volume `30 to 31 g of water)*. QuickLoad does predict about 3000 fps for a 24-inch barrel. I hope to verify this when my 24-inch barrel gets here.  

So the article most likely quotes SAAMI standard data which are usually shot in 24-inch barrels.

*Note: I have a 25x45 case blank form Sharps that I pick up at SHOT about two years ago. The case dimensions are pretty much exactly the same (within a few 0.001") except the case length (45mm vs 43.3mm [1.75 vs 1.70"]). Hence the case volumes are within less than 0.1 f of water)
Link Posted: 5/12/2013 11:18:08 PM EDT
[#18]
Originally Posted By 320pf:
Originally Posted By Altair:
Originally Posted By VaFish:
Looks like Sharps is still working on the .25-45

http://ipaper.ipapercms.dk/AGPublishing/INTERNATIONAL/TNM4/?Page=83

87 gr Speer hotcore at 3,000 fps from a 16" barrel.


3000fps is a bold statement.  I've gotten to around 2750fps and I start to get pressure signs.  It will be interesting to watch.



Hi Altair-

"bold statement."

You are being generous. How about flat out BS. It may be accidental, but none the less it is BS.

With my my 20" barrel I can push Speer 87 g HotCors to 2900 fps. In my 16-inch barrel, I can get the 87 HotCors to 2780-2800 fps.

My loads for the Speer 87 g HotCors are pretty much exactly what QuickLoad predicts for maximum loads (52000 CPU/62000psi) for the 25-223Ar* .

I ran the numbers for the 25x45 Shraps and  the 25-223Ar and to get 3000 fps from a 16-inch barrel your will be at 60000 CPU/76000 psi.  This is at or above proof loads.

Both cases have the same case volume `30 to 31 g of water)*. QuickLoad does predict about 3000 fps for a 24-inch barrel. I hope to verify this when my 24-inch barrel gets here.  

So the article most likely quotes SAAMI standard data which are usually shot in 24-inch barrels.

*Note: I have a 25x45 case blank form Sharps that I pick up at SHOT about two years ago. The case dimensions are pretty much exactly the same (within a few 0.001") except the case length (45mm vs 43.3mm [1.75 vs 1.70"]). Hence the case volumes are within less than 0.1 f of water)






I can't see getting 3,000 fps w/ a 87gr. Speer in a 16" Bbl. w/o going over the pressure limits of 62K PSI for the .223/5.56mm parent case...

We have done 3,054 fps w/ a 6.5mm 85gr. TNT in a 18.5" SS Poly 3 @ max. pressure of 62K PSI w/ a fire-formed case w/ a 32.1 gr. case
capacity in the AR-15 via the 6.5mm PCC cartridge...but that was with a shorter projectile, larger bore, and higher case capacity.
Link Posted: 5/12/2013 11:22:01 PM EDT
[Last Edit: Altair] [#19]
Originally Posted By 320pf:
Originally Posted By Altair:
Originally Posted By VaFish:
Looks like Sharps is still working on the .25-45

http://ipaper.ipapercms.dk/AGPublishing/INTERNATIONAL/TNM4/?Page=83

87 gr Speer hotcore at 3,000 fps from a 16" barrel.


3000fps is a bold statement.  I've gotten to around 2750fps and I start to get pressure signs.  It will be interesting to watch.



Hi Altair-

"bold statement."

You are being generous. How about flat out BS. It may be accidental, but none the less it is BS.

With my my 20" barrel I can push Speer 87 g HotCors to 2900 fps. In my 16-inch barrel, I can get the 87 HotCors to 2780-2800 fps.

My loads for the Speer 87 g HotCors are pretty much exactly what QuickLoad predicts for maximum loads (52000 CPU/62000psi) for the 25-223Ar* .

I ran the numbers for the 25x45 Shraps and  the 25-223Ar and to get 3000 fps from a 16-inch barrel your will be at 60000 CPU/76000 psi.  This is at or above proof loads.

Both cases have the same case volume `30 to 31 g of water)*. QuickLoad does predict about 3000 fps for a 24-inch barrel. I hope to verify this when my 24-inch barrel gets here.  

So the article most likely quotes SAAMI standard data which are usually shot in 24-inch barrels.

*Note: I have a 25x45 case blank form Sharps that I pick up at SHOT about two years ago. The case dimensions are pretty much exactly the same (within a few 0.001") except the case length (45mm vs 43.3mm [1.75 vs 1.70"]). Hence the case volumes are within less than 0.1 f of water)


The article says he tested the rifle and ammo that was sent to him over a chronograph so either he's lying about doing his own testing and is quoting longer barrel spec velocity, his chronograph is malfunctioning, the bullets were not actually 87gr HotCors, the ammo was loaded super hot, or Sharps managed to play with the throat and lead (like 5.56 vs .223 or 6.8 SPC SAAMI vs 6.8 Spec II) to allow for a stouter load.  I'd like to find out what the truth is...
Link Posted: 5/12/2013 11:30:22 PM EDT
[#20]
Originally Posted By Dr69er:

I can't see getting 3,000 fps w/ a 87gr. Speer in a 16" Bbl. w/o going over the pressure limits of 62K PSI for the .223/5.56mm parent case...

We have done 3,054 fps w/ a 6.5mm 85gr. TNT in a 18.5" SS Poly 3 @ max. pressure of 62K PSI w/ a fire-formed case w/ a 32.1 gr. case
capacity in the AR-15 via the 6.5mm PCC cartridge...but that was with a shorter projectile, larger bore, and higher case capacity.


And 2.5" more barrel.  I'm just not seeing it either...
Link Posted: 5/13/2013 8:56:08 AM EDT
[#21]
yeah def dont pass the sniff test i get serious pressure signs with 75gr HP at almost 3K.
Link Posted: 5/20/2013 4:17:03 PM EDT
[#22]
So i have finally sat down with some a2200 under the 85gr NBT and 90SBK.

I am hoping i can get out this week to try them. Working up from 23.5-25gr.
Going to sit down tonight and load up some xbr8208 and alliant power pro varmint also under the 75sierra HP and 85nbt.

So hopefully ill have some good data on these newer powders by week end.

I think i may go back and try to tighten up my 85gr load with H335. I now have roughly 1000k rounds through the rifle and it seems to be dropping in velocity with my 85's. So ill try to work them a little more.
Link Posted: 5/26/2013 5:40:33 PM EDT
[#23]
Chronoed my 85gr load today.....just 1 shot 2995fps.  Seems fast enough for a 85gr NBT in this case, I was expecting closer to 2900fps, knowing what I know now I'm guessing 3100fps is doable in my rifle but would be on raged edge of safe.  Only 1 shot because I wanted to play at long range with it and a ball park FPS will get me close on my come ups.



Winds were shifty changing directions between the target and my self, and this Millett scope....well it has to go..... 2 hits at 600 yards.....winds were shifting enough the same hold 15 seconds apart wouldn't be the same impact.



I'm out of H335 completely hopefully I can find some.

P-dogs are non existent this year, have yet to shoot one.

Rocks and steel are everywhere though.  
Link Posted: 5/28/2013 7:22:02 PM EDT
[#24]
Yahooooo!  Christmas has come in May!  320pf is wearing a red suit today. . Thanks for my package!  I am Happy  Happy Happy.
Link Posted: 5/29/2013 10:59:41 AM EDT
[#25]
Originally Posted By dk223:
Chronoed my 85gr load today.....just 1 shot 2995fps.  Seems fast enough for a 85gr NBT in this case, I was expecting closer to 2900fps, knowing what I know now I'm guessing 3100fps is doable in my rifle but would be on raged edge of safe.  Only 1 shot because I wanted to play at long range with it and a ball park FPS will get me close on my come ups.

<a href="http://s48.photobucket.com/user/dk17hmr/media/IMG_20130526_130741_zpsf3b1d0c5.jpg.html" target="_blank">http://i48.photobucket.com/albums/f208/dk17hmr/IMG_20130526_130741_zpsf3b1d0c5.jpg</a>

Winds were shifty changing directions between the target and my self, and this Millett scope....well it has to go..... 2 hits at 600 yards.....winds were shifting enough the same hold 15 seconds apart wouldn't be the same impact.

<a href="http://s48.photobucket.com/user/dk17hmr/media/IMG_20130526_135024_zps40481418.jpg.html" target="_blank">http://i48.photobucket.com/albums/f208/dk17hmr/IMG_20130526_135024_zps40481418.jpg</a>

I'm out of H335 completely hopefully I can find some.

P-dogs are non existent this year, have yet to shoot one.

Rocks and steel are everywhere though.  


Sweet.  What is your load?
Link Posted: 5/30/2013 11:22:00 AM EDT
[#26]
pretty sure hes running 27.6gr H335
Link Posted: 5/31/2013 12:04:26 AM EDT
[#27]
Originally Posted By scatterbrains:
pretty sure hes running 27.6gr H335


Yea that..... with this

85gr NBT
H335
Wolf Small Rifle Magnum
2.450" OAL
Link Posted: 6/3/2013 8:41:21 AM EDT
[#28]
I loaded my first 25-223 loads last night.  I am starting with the Speer SPBT 100gr over AA2200 from 22gr to 24.5gr and the Sierra #1625 SPBT 100gr with the same powder load.  Since I have never loaded for this caliber and I am going on the posted data in this thread, does this sound correct?  

Link Posted: 6/3/2013 10:12:20 AM EDT
[#29]
Possum,
that sounds right to me, think i stopped at 25gr for the 85gr bullets, still havent tried them.  

Also for start loads you can compare with the 6x45 for data, they are close enough where you can use the data for a solid start with 25-223.
Link Posted: 6/3/2013 1:29:45 PM EDT
[#30]
Originally Posted By SCPossum1:
I loaded my first 25-223 loads last night.  I am starting with the Speer SPBT 100gr over AA2200 from 22gr to 24.5gr and the Sierra #1625 SPBT 100gr with the same powder load.  Since I have never loaded for this caliber and I am going on the posted data in this thread, does this sound correct?  



Sounds good. Post results. What barrel length do you have?
Link Posted: 6/3/2013 1:50:03 PM EDT
[Last Edit: VeritatisUnus] [#31]
I finished my rebuild/coating job on my 25 a couple weeks ago.  The weird thing is I was experiencing short strokes with my normal loads using the same parts as before.  I checked and rechecked the gas block placement 1000 times and it would still short stroke.  So I opened the port a tad and have taken it out twice with 100% reliability. I can't explain why it was short stroking after the rebuild but either way its running flawless now.  Here is how it came out:



The pic was with my I-phone and it looks like it washed out a bit. In real life its looks even better as the three colors can be seen better.
Link Posted: 6/3/2013 3:57:57 PM EDT
[Last Edit: SCPossum1] [#32]
Originally Posted By chewbacca:
Originally Posted By SCPossum1:
I loaded my first 25-223 loads last night.  I am starting with the Speer SPBT 100gr over AA2200 from 22gr to 24.5gr and the Sierra #1625 SPBT 100gr with the same powder load.  Since I have never loaded for this caliber and I am going on the posted data in this thread, does this sound correct?  



Sounds good. Post results. What barrel length do you have?


16.5"  That's a great looking rifle.

Link Posted: 6/3/2013 10:21:07 PM EDT
[#33]
chewbacca,

Nice stealthy look.  Did you rebuild your brothers rig as well?

320pf
Link Posted: 6/3/2013 10:22:00 PM EDT
[#34]
SCPossum1,

Do you have any photos of you new baby?

320pf
Link Posted: 6/3/2013 10:58:09 PM EDT
[#35]
Originally Posted By 320pf:
chewbacca,

Nice stealthy look.  Did you rebuild your brothers rig as well?

320pf


No, after my mysterious short stroking episode he doesn't want to touch his.. lol.

As far as loads go, we have pretty much settled on 24.0-24.2 of 2200 with different 100 gr bullets.  Everything from Partitions to Interlocks work well here.  But we did notice that 2200 is not too temp stable so we will be working with re7 and the same 100 gr bullets. One of my standard loads is 24.2 of Re7 behind an 85gr BT, and the 100gr Interlock is much shorter than the 85gr BT so I should be able to do at least 24gr of re7 behind the IL. As long as I can hit 2700+ and keep the groups tight, I'll be happy.
Link Posted: 6/3/2013 11:29:11 PM EDT
[#36]
Originally Posted By chewbacca:
I finished my rebuild/coating job on my 25 a couple weeks ago.  The weird thing is I was experiencing short strokes with my normal loads using the same parts as before.  I checked and rechecked the gas block placement 1000 times and it would still short stroke.  So I opened the port a tad and have taken it out twice with 100% reliability. I can't explain why it was short stroking after the rebuild but either way its running flawless now.  Here is how it came out:

http://i42.tinypic.com/2ziq4pj.jpg

The pic was with my I-phone and it looks like it washed out a bit. In real life its looks even better as the three colors can be seen better.


Did any of the coating material get inside the gas port by any chance?
Link Posted: 6/3/2013 11:36:03 PM EDT
[#37]
Originally Posted By LRRPF52:
Originally Posted By chewbacca:
I finished my rebuild/coating job on my 25 a couple weeks ago.  The weird thing is I was experiencing short strokes with my normal loads using the same parts as before.  I checked and rechecked the gas block placement 1000 times and it would still short stroke.  So I opened the port a tad and have taken it out twice with 100% reliability. I can't explain why it was short stroking after the rebuild but either way its running flawless now.  Here is how it came out:

http://i42.tinypic.com/2ziq4pj.jpg

The pic was with my I-phone and it looks like it washed out a bit. In real life its looks even better as the three colors can be seen better.


Did any of the coating material get inside the gas port by any chance?


Nope. With 100% certainty. That was the first thing I looked for and anticipated from the get-go.  Everything was well taped off during the coating process.

I really don't want to get into it, but I changed every single component (some multiple times) in the rifle and the best that would happen was the bolt would lock back with the carrier on the mag, not the bolt on the BHO. So I went back to the original components after opening the port a smidge and viola, magic.
Link Posted: 6/3/2013 11:44:43 PM EDT
[#38]
It makes a lot of sense to trouble-shoot everything possible before opening the port.  I usually recommend people to take a close look at the carrier key, gas tube flange, and bolt tail clearance from the inside of the carrier.  It also helps to have a standard weight carrier.  Sometimes, the port just needs a little opening, especially on the alternate calibers.
Link Posted: 6/4/2013 9:16:54 AM EDT
[#39]
Chewbacca,

I have never refinished a rifle. do you put coating on the inside of the upper receiver and on the bolt-carrier group? If so, this would tighten up the tolerances a bit thus taking a bit more gas to cycle.
Link Posted: 6/4/2013 10:09:52 AM EDT
[#40]
Originally Posted By 320pf:
Chewbacca,

I have never refinished a rifle. do you put coating on the inside of the upper receiver and on the bolt-carrier group? If so, this would tighten up the tolerances a bit thus taking a bit more gas to cycle.


Of course not. Like I said before, I had everything that needed to be taped taped. I have duracoated uppers before, and have built/rebuilt probably 100 or more rifles over 13 years and have never had a problem. I really don't want to get into it but trust me when I say I went through every trouble shooting aspect possible. It was a mystery and very frustrating. I'm running a standard carbine spring and buffer, but am going to play with some different buffer and spring weights just to tune it a little bit.
Link Posted: 6/5/2013 10:26:22 PM EDT
[#41]
So i got out today to run some AA2200 with the 85gr NBT and 90grSBK
The range was 23.5-25gr of AA2200

85grNBT
23.5-AVG-2564fps ES29--group .935"
24-avg-2645fps ES 37- group 1.745"
24.5-avg-2677 ES 32-group 2.165"
25 avg-2750 ES 102- group 3.47"

90gr SBK
23.5- avg-2612 ES30-SD12-group=2.099"
24-avg 2721 ES0 SD0 group 1.903" ---(only 2 rounds read over the chrono)
24.5-avg-2682fps- ES21 SD8-group .985"
25-No data had popped primers, and ismy MAX

I am happy with the powder i will be working with the 24.5gr +/- .2gr with the 90gr SBK. It shows some good promise for my matches.

Not sure what ill do with the 85gr NBT the 23.5 is way to slow for my liking so i think im going to come back to it at a later time so i can focus on the 90gr SBK.

With the 85gr and 24.5gr i had great 2 shot grouping then the next 3 went high right into a small 3 shot cluster! WTF howd i screw up perfectly 3x??

Explain this!!


I dont get it LOL  all the same POA and 2 distinctly different POI.  So i think i am going to try the 24.5gr +/- .2gr when i come back to it later.
Link Posted: 6/6/2013 7:01:37 PM EDT
[#42]
UPDATE on my grouping issue..

So i sat down today to go through all my collected data from yesterdays testing and figured out what happened.  I log everything when testing new rounds and use a data book religiously every time i shoot now. So with all my collected data i figured out the 2 rounds that clustered to POA in the above picture were in fact the 2 FC cases that blew the primers out    Hooray for data logging  the next 3 rounds in that group i believe are the proper POI with that load .

So i will NOT be shelving further testing w/ the 85gr and aa2200 im going to load more up in 24.3, 24.5, and 24.7gr and reshoot those loads along with the 90gr and see where it takes me.

So i HIGHLY recommend logging as much info for your testing and shooting it helped me discover the issue that led to a spotty test group and stoppped me from wasting components.  
Link Posted: 6/7/2013 12:23:20 AM EDT
[#43]
Get rid of that FC brass.....I hate that junk
Link Posted: 6/7/2013 10:25:08 AM EDT
[#44]
Originally Posted By dk223:
Get rid of that FC brass.....I hate that junk


I agree im tryin to burn up the rest i now toss it after 3 loadings, some of the winchester and R&P i have almost 11 loadings on now
Link Posted: 6/9/2013 1:26:04 PM EDT
[Last Edit: VeritatisUnus] [#45]
Went out shooting this weekend focusing on two loads: 24.0 of AA2200 and 24.0 of RE7 behind a Hornady 100gr Interlock. The former is a proven load, so that was used as a benchmark (making sure I am shooting well that day) comparing against the RE7 load.

Both loads put 5 shots into an inch at 100 yards during a windy range day.  I forgot to bring my chrony (seriously stupid!) so I'll have to do that next time, but I am seeing zero pressure signs so I'm going to step up the powder charge a little bit for kicks. The 2200 load has been chronied at 2700 fps and if the re7 load hits that or more, that will become my new standard load. I'm loving this INterlock though.

I put a Spikes T2 buffer in my rifle and this buffer makes the rifle so smooth and also eliminated some ejector swipe I was getting on my nuclear 85gr BT loads.

Overall, I am very happy with the rifle's performance.  I will probably upgrade the glass soon since the Bushnell Elite is about as clear as mud when compared to my other scopes.
Link Posted: 6/10/2013 12:54:33 AM EDT
[#46]
Quick pic of my rifle. I have a temporary stock and scope mounts on it so I can shoot it next weekend. The brass spec'd out with my "ebay" rcbs dies so I think I am good to go. I have some Sierra and Speer 100 grainers loaded with AA2200.

http://i313.photobucket.com/albums/ll373/scpossum1/image-1.jpg

Link Posted: 6/11/2013 6:21:25 AM EDT
[#47]
Originally Posted By SCPossum1:
Quick pic of my rifle. I have a temporary stock and scope mounts on it so I can shoot it next weekend. The brass spec'd out with my "ebay" rcbs dies so I think I am good to go. I have some Sierra and Speer 100 grainers loaded with AA2200.

<a href="http://s313.photobucket.com/user/scpossum1/media/image-1.jpg.html" target="_blank">http://i313.photobucket.com/albums/ll373/scpossum1/image-1.jpg</a>



Nice man, now get shooting!
Link Posted: 6/11/2013 5:35:24 PM EDT
[#48]
Whew!! Just finished reading this whole thread over the past few days.  Have Redding dies and whatnot on order from Midway.  I have Brent getting started on my 20" lightweight barrel build.  Here is a question for you all.  I have a suppressor waiting, hopefully approved in October-ish and I started thinking about running the 117 gr RN bullets in the subsonic range.  I realize that most likely action wouldn't operate with a load like that but using it as a bolt action would be ok.  Just curious if anyone else had thought along the same lines.  Looking forward to joining your ranks soon!

Russ
Link Posted: 6/11/2013 5:57:39 PM EDT
[#49]
Originally Posted By rdc_bones:
Whew!! Just finished reading this whole thread over the past few days.  Have Redding dies and whatnot on order from Midway.  I have Brent getting started on my 20" lightweight barrel build.  Here is a question for you all.  I have a suppressor waiting, hopefully approved in October-ish and I started thinking about running the 117 gr RN bullets in the subsonic range.  I realize that most likely action wouldn't operate with a load like that but using it as a bolt action would be ok.  Just curious if anyone else had thought along the same lines.  Looking forward to joining your ranks soon!

Russ


I like my .25's but there are better options if you want to run suppressed.  With the pre-determined speed limit imposed on subsonics you lose capability with the smaller caliber.  

Another issue you may run across is bullet stability.  Rotational velocity will go down with muzzle velocity for a given twist rate, so running subsonics can require faster twist than the same bullet at 2000fps will require.  Most of the .257 barrels won't have sufficient twist to run a heavy subsonic and it can cause baffle strikes with a suppressor.

Also, with a 20" barrel you will likely pass the point where the bullet will be decelerating in the barrel.  In other words, if you have 1000fps at 20" you may have 1200fps at 16" if you cut the barrel down.  This makes the possibility of getting a bullet stuck in the barrel higher and you will need to be careful about that as well.

If you are serious about subs I'd suggest something in a pistol caliber or a 300BLK SBR.  There are bullets that will expand at subsonic velocities in these calibers, which makes them much more useful for things other than punching paper.  I'm not aware of a .257" projectile that will expand below 1000fps.
Link Posted: 6/11/2013 6:25:17 PM EDT
[Last Edit: rdc_bones] [#50]
Hey Altair,  thanks for the info.  I was just pondering subs as a range toy idea.  I looked at the .300 Blk but the cost vs benefits for just a range toy aren't there for me.  I like to shoot long range.  If I decide to play with subs I might just load some for my 30-06 bolt gun.  Thanks again.
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