steel cased ammo in m1a?

[SMS]

The only hesitation i have with steel cased ammo is the copper washed steel jackets. I've never checked barrel prices to see if the offset in ammo cost justifies rebarreling an M1A, but I've got to think it is cost prohibitive.I'll shoot steel case in my ARs all day because I can rebarrel a couple of times and still be ahead. With the quantity of inexpensive 7.62 factory ammo in brass with an all copper jacket, I'll stick with that instead for my M1A.

Serious question, with the mild steel gilding and a copper wash, does any of the steel gilding actually make contact with the barrel? If it doesn't, would you actually see more barrel wear than with copper jacketed bullets?

 

[Surveyor1653]

I believe the original question was about brass or steel cases, and not about what kind of bullets.

I believe the bullet composition is germaine to the conversation since, up to this point, steel cased ammo was thought to be the only one with steel jacketed bullets.

As for whether the steel jackets would have an impact, I'd say they probably do:

http://www.luckygunner.com/labs/brass-vs-steel-cased-ammo/

 

[SMS]

Good read...

 

[_CY_]

heck of a torture test .. interesting to see barrels were shot out at 6k round with steel cased ammo vs Federal at 10k still shot acceptable accuracy