6.5 grendel failure to extract
Posted: Thu Jun 15, 2017 8:20 am
Hey guys wanted to get some thoughts on this. I just finished a 6.5 grendel build with a 18" inter-mid Odin works barrel with Odin works bcg. Upper is an Anderson. I've got a budget free float rail on it. Everything assembled and fit without issue. At the range I had wolf steel cases ammo and horned black brass cases ammo. Hornady cycles without a lot of issue. Wolf struggles. At first I couldn't get any if the wolf to cycle. It would fire, fail to extract and then double feed the next round. So is lock the bolt back, drop the mag, send the bolt home and then the case would be stuck. I figured maybe the coating on the wolf ammo? Polished off from the shoulder to the bullet so it was just the steel. Made sure the gas block was aligned and opened all the way. Cleaned everything, lubed the hell of our the bcg and tried again. Zero issue with brass but the steel was still not extracting. Same problem as before and case would still be stuck. Tried something different and did a controlled release of the bolt with the charging handle. When I do this it'll grab the steel case and pluck it out without issue.. no sticking.. so at this point I'm thinking maybe a headspace issue or extractor issue? Bolt will lock back if I single shot it so I don't think it's a gas problem and it's cycling brass just fine. I've got an email in to Odin works to see what They say. I'm gonna order a BCM extractor spring upgrade kit and try that and see what is up but I know other guys are shooting the same barrel with wolf just fine.