Quote Originally Posted by Jim D View Post
Most people who've shot more than a few thousand rounds of ARC have seen a bolt failure or two.
Myself and a bunch of other Grendel shooters didn't get that memo. I wonder if ARC is running at higher pressure?

I've got multiple thousand rounds on one and never had an issue. Maybe not 5k+, but easily 2-3k.

I have seen one broken extractor on a new 6.5G bolt after ~100 rounds that I attribute to a manufacturing issue. Still should not have happened.

Bolt thrust is a real issue and why the Grendel isn't hotter than it is. If the max can run at much higher pressures with the rebated case head that could be an advantage.