Thank you. I read that the 7.62 chamber has a minimum size that is about .0055" bigger than the .308, making it risky to shoot non-NATO ammo in a 7.62 chamber. Is that incorrect ?
1. SA M1As are designed/chambered to handle either Comm'l 308 -- OR -- Mil 7.62
See page 5: http://www.springfield-armory.com/wp-content/uploads/2014/03/M1AManual.pdf
When reloading.....
But of course !reloading...note that SAI also says doing so will void your lifetime warranty.
I'm getting real tired of this statement. It's flat wrong. Period."...get a cartridge case headspace gauge..." Waste of money. Cartridges do not have headspace.
I do not have a dog in this race. What this stems from is the SAAMI drawing actually and if we go back to post number 6 I posted the SAAMI drawing for the 308 Winchester cartridge and chamber. The chamber is the lower drawing and the cartridge is the upper. The circled X in the lower chamber drawing denotes a headspace dimension. That is called out in the drawing notes on the lower left. The upper cartridge drawing lacks the circle X or any reference to a headspace dimension. Now if we look at the SAAMI Glossary of Terms:I'm getting real tired of this statement. It's flat wrong. Period.
Cases DO have a headspace dimension, and it's clearly marked in the SAAMI drawings.
That very real case headspace dimension is also critical to safe reloading and brass life in any M1A.
Huh?The upper cartridge drawing lacks the circle X or any reference to a headspace dimension. Now if we look at the SAAMI Glossary of Terms:
Agreed, kinda dumb. That's like saying "don't fire a 338 Lapua in a 30-06 chamber." That should already be understood.At least a 7.62x39 MIGHT fit in a .220 Swift chamber if the bullet got shoved back into the case.
But telling people not to fire .40 S&W in a weapon chambered for 9mm Luger?
Despite the lack of SAAMI warnings, I would still avoid shooting commercial .308 in a converted '93 Mauser, but I honestly don't think full power 7.62x51 NATO would be a great idea either.