This stuff will wear our your extractor a tad faster than the brass case stuff out there but the wear is minimal, I went through 400 rounds of this through my bushmaster without one single issue. its dirty ammo for sure, just clean your AR when your done, I personally use 28 rounds of wolf and two rounds of UMC (bottom two rounds) in one mag to clear the gas operating system. dont rapid fire through an entire mag and you shouldnt have issues. The only feed issue I had was related to a 20 round promag, the top round happened to be wolf and the mag was cheap (so i brought it), so i placed a rem umc round in its place and i had the same issue. good stuff, great for practice. If you own a 2 grand to 3 noveski, pof-usa or a sabre, then you probably wont wanna use this stuff

so far wolf 55 gr fmj is the best ammo for its price per 20 round box and would love to have more.For stocking up for the future.

Ordered 1000 round case, first 100 rounds scored a 24% defect rate. Wolf made it good. 76% is a gamble.