HinAll, the 6.8x51 / .277 Fury has been out there a year now. I'm curious if anyone has seen commercial or semi-commercial AR-10 platform barrels out there that can handle the high 80kpsi pressure yet. I've heard there is a proprietary metallurgy to the gov barrels so not sure if any experimenters out there have made something close yet. I have seen some SS barrels but they are limited to 68Kpsi