DPMS= Defense Procurement Management Systems. Gee, why do you think they have that name? I have owned 3, all have been great with zero problems, and yes, they were fed Wolf, thousands of rounds of it. Two were 5.56, and one, that I still have, is .308. One of the 5.56s was my ex-wife's. She, and the gun are gone, which explains were one went, the other, I traded for a M1a, since I already had an arsenal slr101s for mid range and short range work. The first 50 rounds through my LR308T, I had about five failures with surplus, after that, I've not had even one. I also had a few failure early on with my bolt not closing completely on my hand loads ,which ran fine through my M1a and my Fal, which was due to the fact that they were sized with a Lee die. I have since sized all my loads with the RCBS small base dies, and have fired close to 1,000 of them without even one problem.