I haven't shot PMC in a long time and won't buy it picking even Wolf steel cased over it. PMC is the only ammo that I've ever seen the case head separate. 5 rounds out of 100 with visible cracks in 11 more. My Mini is admittedly hard on cases but PMC is still junk. It's never ripped rims off of any other ammo from Wolf, Brown Bear, Privi, Winchester, Remington, Federal, American Eagle, Israeli surplus, Radway, or anything else that I just can't remember. I have no faith in a case that won't hold together when every other brand has.
MAC did a review on Wolf Gold sometime ago: https://www.youtube.com/watch?v=3z7GB6RD4kI. A 1.5" 10 shot group was shown by MAC with a MR 556 and a 3045 fps average out of the same 16" barrel. It's loaded more to Nato spec than .223. The cases have sealant and are also annealed. I started reloading so I only buy ammo now when it's an insanely good deal. I picked up some Wolf Gold awhile ago at $295 for 1000 from Wideners and have had no problems with it at all. I probably have 20-40 rounds left. I would have bought more but I finally found some powder and primers so I went back to reloading.