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  #1  
Old 04-18-2017, 02:49 PM
USAR1957 USAR1957 is offline
 
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Default Ammo for M1A

Just ordered a NIB Springfield M1A and started to research what ammo to use in the rifle. Apparently, it has the same problem as the Garand with digesting commercial ammo. Such as the higher pressures generated by the commercial .308 round, etc.

How much harm could be done to a new M1A's machinery by using .308 v ammo loaded to the NATO 7.62 standard?

Also, thoughts on any particular brand of mil spec ammo out there that I should shoot?

Hope I am not opening a can of worms here!

Thanks for any input.

Last edited by USAR1957; 04-18-2017 at 02:55 PM.
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  #2  
Old 04-18-2017, 03:24 PM
GM1MAN GM1MAN is online now
 
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Here's what I shoot in mine with zero issues:

HXP 7.62x51 FMJ from the 1980's.
ZQI .308 FMJ recent manufacture.
Hirtenberger 7.62X51 FMJ circa 1975, 1980.
LC 7.62X52 FMJ circa 2015, 2016.
PPU 7.62X51 FMJ, recent manufacture.

Federal .308 Win. 168 grn. BTHP Match (available from CMP)
Made for the M-1A, American Eagle 7.62x51 168 grn. OTM BTHP (available from CMP)

I have also fired other factory ammo, Perfecta .308 147 grn. FMJ, PMC 150 grn. .308 Win 150 grn. PSP for example, but I used a Schuster over-bored gas plug. I do not use it with any of the other ammo, but I find that it is sometimes difficult to find out specifications about all types of factory .308 ammo.

A good ammo website to use, among others is www.sgammo.com, they sell a lot of different ammo suitable for the M1-A and I have had good luck purchasing from them.

Go on over to the M14forum and you will find a wealth of knowledge there about different ammunition that is suitable for the M1-A.

As a side note, I do not shoot steel cased ammunition of any kind in my M1-A's.

HTH.

Last edited by GM1MAN; 04-18-2017 at 03:28 PM. Reason: added info.
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  #3  
Old 04-18-2017, 04:06 PM
oodnoodn oodnoodn is offline
 
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Federal Gold Medal Match is currently available from several online suppliers for a buck a round with free shipping on a 200 round order.

That is the gold standard for shooting tiny groups with a M1A/M14, or AR10 type for that matter. You'll look for a long time to find a store-bought ammo that shoots as good or better, & if you reload you'll have to up your reloading game to match it.
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  #4  
Old 04-18-2017, 04:25 PM
YahooMarine YahooMarine is offline
 
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"Apparently, it has the same problem as the Garand with digesting commercial ammo. Such as the higher pressures generated by the commercial .308 round, etc."

Where did you hear that? I do not believe that is an issue with the M1A/M14 family of rifles.

Currently I am using ZQ1 (WalMart), PPU in both 7.62 and .308, and Win 7.62 white box in my M1A and Fulton M14 receiver with mostly my GI parts. Both rifles shoot better than I can with this ammo. Also, I am currently using this ammo in my 2 M1 Navy mod 2s built on CMP barreled receivers with no issues.

There is some Atomic brand ammo that is too hot so avoid that brand.

Rich
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Last edited by YahooMarine; 04-18-2017 at 04:30 PM. Reason: added info
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  #5  
Old 04-18-2017, 04:43 PM
nf1e nf1e is offline
 
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.308 and 7.62 x 51 ammo are the same thing. Just keep your bullet weight under 180 gr.

Pressures are measured differently, but are 6 of one, half a dozen of the other.
Don't listen to the myths of the internet and you will do just fine.

Semper Fi
Art
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  #6  
Old 04-18-2017, 06:25 PM
YahooMarine YahooMarine is offline
 
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Art: What do you think about the reports that the Atomic 7.62 (or are they .308?) reloads sold by CMP a few years ago is too hot. I have a can that I am sitting on rather than risking a case failure.

Thanks, Rich
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  #7  
Old 04-18-2017, 06:43 PM
nf1e nf1e is offline
 
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Quote:
Originally Posted by YahooMarine View Post
Art: What do you think about the reports that the Atomic 7.62 (or are they .308?) reloads sold by CMP a few years ago is too hot. I have a can that I am sitting on rather than risking a case failure.

Thanks, Rich
Excellent question Rich. I have a bunch of it setting in the stash but haven't shot any. Can says .308 and 2600fps with Nosler 168 gr match bullet in once shot military casings. I don't think I even opened a can of the stuff yet.
99% of my shooting is with home rolled fodder.
I will be happy to report back to you in the next couple of days. Great time to break open a can and giver her the dickens. See what it chronos at.



Semper Fi
Art

Last edited by nf1e; 04-18-2017 at 06:47 PM.
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  #8  
Old 04-18-2017, 07:04 PM
Deuceguy Deuceguy is offline
 
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If you're going to plink at 100, stay cheap. If you're going to shoot a match at 200, get cheap milsurp and commercial (147-150 grain projectiles). At short distances, why waste money on the best ammo? They are ok at 300. I use 168s for 300 to 600. 175s for 600 and up. Learn to reload.

Shim your fromt band and trim your handguard... Look up TONY BEN on YouTube for instructional videos on accurizing the M1A. Lapriester, nf1e, Ted Brown and a few other have a lot of info on this forum.
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  #9  
Old 04-18-2017, 07:35 PM
YahooMarine YahooMarine is offline
 
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Thanks for the response Art. I'm interested in your results and opinion of the Atomic 308.

Rich
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  #10  
Old 04-19-2017, 07:09 AM
nf1e nf1e is offline
 
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Quote:
Originally Posted by YahooMarine View Post
Thanks for the response Art. I'm interested in your results and opinion of the Atomic 308.

Rich
I just opened a plastic can of this stuff to take a look at it. Loose packed LC cases from 01 - 10. Looks to have been trimmed square on the mouth and not cleaned up leaving quite a ridge on the outside of the mouth on most cases. I would assume the inside is the same. Link marks are apparent on some. Other than that it looks decent. Nothing to write home about.
A couple of hours and I will give some a go in my latest Bula Defense XM21. I have been itching to function test this rifle and just haven't had a chance to.
Headed out to set up the chronograph.

Semper Fi
Art
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