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foxbody40891
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Posted: 5/10/2013 12:21:10 AM
Hey guys, I'm somewhat new to precision reloading and I was wondering your thoughts on once fired military brass.... I will not be measuring for tightest groups but would like to atleast come close to sub moa and be able to start on load development for my rifle. Thanks.
Eric802
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Posted: 5/10/2013 10:04:31 AM
You might want to post this in the Reloading forum...couple forums down here on the Armory board.
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AKJP
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Posted: 5/10/2013 10:19:38 AM
Military brass is certainly up to the task. However, keep in mind that there are some differences in some callibers (.223 vs. 5.56 and 7.62 vs. 308, for example) that may need to be taken into consideration. Also, the crimped primer pockets will add extra work for you. Beyond that, the brass itself is not likely to prevent you from achieving sub-MOA accuracy.
Eric802
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Posted: 5/10/2013 11:24:58 AM
There is difference between 7.62 and .308 brass as far as case capacity goes, but for 5.56 and .223 there's no difference between military and commercial brass. There is some commercial brass that has less case capacity than Lake City. It's not an issue except with (I think) PMP brass, which is thicker-walled and has reduced capacity.
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ChrisGarrett
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Posted: 5/10/2013 12:53:24 PM
Originally Posted By foxbody40891:
Hey guys, I'm somewhat new to precision reloading and I was wondering your thoughts on once fired military brass.... I will not be measuring for tightest groups but would like to atleast come close to sub moa and be able to start on load development for my rifle. Thanks.


I use virgin RA61 (Remington Arms, 1961) brass in my target loads (200 pcs) and it's been pretty good, cheap ($8/100, years back,) fairly consistent and long lived (10 cycles,) so .mil brass can be fine to shoot, but a lot of the 7.62 stuff we see has been fired out of the M-240 and the chambers on those tend to be on the sloppy side.

In this case, sizing might require a small base die and/or you might not get many cycles out of it, if there was catastrophic stretching, on the initial firing. Still, when I started reloading in 1995, I bought a bunch of Grade 1 556/762 brass from Midway when it was cheap and many of those are still in service, 18 years later, so who the heck really knows?

Get some, prep it up, anneal if you have to and see what you see.

Chris

foxbody40891
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Posted: 5/10/2013 3:00:55 PM
That's what I wanted to hear. Thank you guys. And yeah, I didn't know if I'd be better off asking here or in the reloading section. You guys answered all I needed though.
OhioLongRange
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Posted: 5/10/2013 9:59:27 PM
most of my 260 brass is .mil 308...
RocketmanOU
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Posted: 5/10/2013 10:19:37 PM
My testing has consistently shown that I am able to get more accurate and more precise groups out of properly conditioned military brass (HXP) in my .30-06 precision rifle than I can out of Norma or Lapua. I have found that dispersion of case weights at a given trim length had no discernible effect on accuracy, nor did they have any effect on muzzle velocity at a given powder charge. This is just my testing in my rifle on a limited set of loading parameters, but it is what it is.

Best of luck.
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jimr
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Posted: 5/11/2013 12:26:06 PM
Most any brass should give decent groups@100yds. I have found@400yds and beyond Lapua gave me much better results.. Your rifle will tell you what it prefers,,,if you let it.
hdbiker1
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Posted: 5/11/2013 12:57:01 PM
I've found that some military brass can't be brought to spec without firing and sizing a few times. Even then, expect to throw some away because of this. Especially 7.62 brass.
mustangfreek
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Posted: 5/11/2013 3:58:32 PM
When reloading .308 , is there a big enough difference in case weight/thickness from the military and commercial brass to load different on the military brass?
foxbody40891
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Posted: 5/11/2013 4:30:44 PM
Well I ended up buying a hundred rounds so we will see how it goes. I couldn't imagine it giving me too terrible results but I wanted some thoughts from some more experienced guys before I wasted time and money on stuff that would serve better as a paperweight. Thanks again for all the replies.
willstill
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Posted: 5/12/2013 6:03:46 PM
The "secret" to precision shooting is to keep everything consistent. If you want to use once-fired military brass, then use it. However, like any other brass, you'll need to do everything possible to be consistent so that all the ammo is as exactly the same.