Well, I certainly will NOT make claims that I cannot support on paper as per those targets. BUT, I'm always up to a good friendly challenge. I would love to try this with a 6BR barrel that is currently in the works. But the reamer has been a long time coming, no fault of my chosen accuracy guru. Perhaps my stock 12FVSS can be up to it, it'll have to be on a calm day though. Looking forward to giving it a shot, or five.