Quote Originally Posted by Beetlegeuse View Post
This sheds some light on a discussion were were having several posts ago about suppressors on machine guns.

Video of the Army testing its new "smuzzle" (suppressor-muzzle brake) on (7.62) M-240:



By my reckoning they run about 670 rounds through it non-stop in about 62 seconds, which would be consistent with the 240's gas setting #1, which by the book is 650-750 rpm.

And nothing fails. There's nothing even glowing (in this light) except the can. My G**gle-fu is faltering and I can't discover what it's made from, but I'll keep looking.

IMHO they squandered an opportunity by not testing it to failure. Seems to me that any engineer worth his salt would want to know when that happens and how (mean time between failures/mean rounds between stoppages). But in typical military fashion, they probably only tested it to meet a minimum standard.
It would have to be one of the superalloys to overcome thermal creep. Surefire favors stainless steel and Inconel on most of their stuff as far as I know

Other than welds, I wonder if tungsten/Wolfram is in the mix as it has the highest mp of any metal @ 3,422°C.

I'd be interested to know myself.