I've gone though about 10K of these rounds in the last year to two. That's a savings of over $1200 compared to Federal which paid for a pair of pistols and some nice optics. Good plinking and practice ammo. I had a pair of Olympic rifles that didn't function with Wolf but 4 other AR's than ran like no one's business.

So think hard, is the problem with the ammo or the two rifles? Yes, the rifles! So I had a finish reamer run though both problem child rifles and they both produced enough shavings to confirm my feeling that the chambers were undersized.

Now all six AR's run fine with Wolf.

Never had a problem with wolf.  I shoot .223 in a buddy's AR and my SAR as well as 5.45 and 7.62
No problems with Wolf or Barnaul.  My understanding is that wolf is actually 5.56 Nato which is ever so slightly different than commercial .223.

Glad we have them for a sponsor.