7.62x51 Ammo


PDA






face
March 8, 2012, 10:01 PM
I have an M1A, and was curious if steel case ammo was safe to use?

If you enjoyed reading about "7.62x51 Ammo" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
wally
March 8, 2012, 10:03 PM
My Polytech has no trouble with it, although accuracy is mediocre at best.

I'm of the opinion it ain't much of a gun if steel cased ammo breaks it!

henschman
March 8, 2012, 10:07 PM
Yeah, it's fine. It just shoots a little dirtier and is less accurate.

Jason_G
March 8, 2012, 10:18 PM
I've run small quantities of Barnaul through mine with no issues, other than the mediocre accuracy. I have heard of the lacquer gumming up in a hot chamber after long strings of rapid fire, causing extraction issues. Never experienced it myself.

Jason

madcratebuilder
March 9, 2012, 09:30 AM
The steel case 7.62 saves you about 5 or 6 cents a round compared to DAQ or IMI brass case NATO surplus.

Jeff F
March 9, 2012, 10:41 AM
I've run small quantities of Barnaul through mine with no issues, other than the mediocre accuracy. I have heard of the lacquer gumming up in a hot chamber after long strings of rapid fire, causing extraction issues. Never experienced it myself.

Jason
Its not the lacquer gumming up in a hot chamber, its because the steel cases don't expand and seal the chamber as good as brass does. Also I believe most of the manufactures of steel cased ammo have given up on the lacquer and gone to a poly type of coating. I don't think it will hurt a gun, I shoot a lot of it in .223.

If you do shoot it just clean your chamber a bit more often and always clean it before switching back to brass cased ammo. If you don't clean before shooting brass cased ammo and your chamber is dirty the brass case can expand, get stuck and the extractor can rip a chunk off the rim leaving the case stuck in the chamber. Do that a few times and you probably will end up with a broken extractor.

face
March 9, 2012, 11:52 AM
What other surplus ammo would you recommend or discourage it's use?

1KPerDay
March 9, 2012, 12:28 PM
brit radway green
German DAG or MEN
LC if you can find it

henschman
March 9, 2012, 03:38 PM
Everything 1KPerDay said, plus Prvi Partizan. It new production ammo, but it is just about as cheap, if not cheaper, than most surplus nowadays.

1KPerDay
March 9, 2012, 06:36 PM
Aye. I should add portuguese, South African, and Venezuelan. But not much of that around anymore.

adelbridge
March 9, 2012, 09:16 PM
I have had trouble with the Monarch branded steel cased stuff but it was most likely due to military (russian) primers not liking the 4lb spring in my ar-10. No other brass cased ammo I have tested so far has given me issues. THe steel stuff also uses dirty powders and when it did go off the point of impact was a couple inches lower than the winchester super x ammo I sighted in with. That would tend to indicate lower velocity, negligable difference in bullet weight Monarch should have printed higher since it was 5 grains lighter than super x

Jason_G
March 9, 2012, 09:53 PM
Its not the lacquer gumming up in a hot chamber, its because the steel cases don't expand and seal the chamber as good as brass does.

How would a poorly expanding case get stuck?

Jason

Jeff F
March 10, 2012, 01:53 AM
How would a poorly expanding case get stuck?

Jason

Because they don't expand and seal the chamber so it gets carbon fouled. I had a few hundred rounds of Herter's .223 ran through my Mini 14 and noticed erratic ejection. Fired cases were not flying as far as they should. Never got to the point of a stoppage, but I cleaned the chamber with a chamber brush and all was well after that.

Jason_G
March 10, 2012, 02:00 PM
Because they don't expand and seal the chamber so it gets carbon fouled.

Gotcha.

I've never had that happen before. I don't shoot much steel cased ammo though.

Jason

Lee D
March 10, 2012, 02:15 PM
"Because they don't expand and seal the chamber so it gets carbon fouled."

Jeff F hit the nail on the head

GD
March 10, 2012, 02:40 PM
If you have ever examined a steel case after firing and compared it with an unfired case, you would know the claim that there is no expansion is false. I wish people would quit spouting internet falacies and state the facts. Steel does not conform to the chamber as well as brass does but does to some degree seal off the chamber. Much of the fouling occurs when the case is extracted. You will find fouling throughout the receiver and even some within the magazine. Soviet ammo is notorious for dirty ammo but as long as you keep the firearm clean, it is great ammo for plinking and general target practice.

wlewisiii
March 10, 2012, 02:45 PM
Well, I just picked up a small pile of Brown Bear 145 gr FMJ to shoot in my Ishapore 2A. I'll have tp try to remember to post any observations that might be of interest.

Lee D
March 10, 2012, 05:27 PM
"Steel does not conform to the chamber as well as brass does but does to some degree seal off the chamber."

and that "some degree" seal is not some internet falacy. yes, the Russian ammo is dirty, and i do use it for practice, but i do examine my brass cases as well as non relaodable steel and have noticed very slight differences in external measurements. i doubt the micrometer is wrong

If you enjoyed reading about "7.62x51 Ammo" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!