S SkaerE Sergeant Full Member Minuteman Jun 5, 2001 223 0 The only blue part of VA :( Nov 28, 2011 #1 Nov 28, 2011 #1 have a CMMG 300 BLK upper that seems to gouge my brass right at the shoulder. not just a slight flattening, but a gouge to the point I can see shiny brass. Any ideas to the cause?
have a CMMG 300 BLK upper that seems to gouge my brass right at the shoulder. not just a slight flattening, but a gouge to the point I can see shiny brass. Any ideas to the cause?
Austan Uncontrollable Fringe Outlaw Full Member Minuteman Nov 27, 2007 1,802 2,434 Spooner, Wisconsin Nov 28, 2011 #2 Nov 28, 2011 #2 Re: 300 BLK cases getting gouged? Feed ramp need polishing? Does it happen if you single load?
P PowerstrokeOBX Gunpowder Addict Full Member Minuteman Jul 6, 2011 1,053 84 Outer Banks NC Nov 29, 2011 #3 Nov 29, 2011 #3 Re: 300 BLK cases getting gouged? Check your magazines too.
Eagle1899 Sergeant Full Member Minuteman Apr 8, 2006 452 70 MN Nov 29, 2011 #4 Nov 29, 2011 #4 Re: 300 BLK cases getting gouged? Locking lugs on the barrel extension.
Eagle1899 Sergeant Full Member Minuteman Apr 8, 2006 452 70 MN Nov 29, 2011 #5 Nov 29, 2011 #5 Re: 300 BLK cases getting gouged? Sharp corners scratching the brass on feed/eject. May be able to ID the offender and knock the sharp one off with a stone or file...
Re: 300 BLK cases getting gouged? Sharp corners scratching the brass on feed/eject. May be able to ID the offender and knock the sharp one off with a stone or file...
