I can't recall what thread I read it but I think that they are working towards that. If I am recalling correctly, Frank was running carbon barrel testing on machine guns first.
No sorry but it's dead in the water right now. Just no extra time for some of this stuff. It is just flat out busy and I don't see it getting any better.
I'll have to fit it in somewhere and just push it along best I can.
We've made a few AR15 barrels and Brady has one on his service/match rifle. He hasn't seen any issues with accuracy.
I will say if you run dump three 30 round mags thru the gun on full auto....the carbon seems to get soft but no issues.