My CZ-82 stumbles occasionally (maybe 1 round out of a 50 round box) on the Wolf cone-head 100g FMJ. It has run 100% with ANY round nose bullet, jacketed or lead, with the Sierra flat nose jacketed bullets, and with Hornady XTP jacketed HP bullets (which I reload to duplicate the Hornady factory loads - much cheaper to practice with.)
The Wolf cone-head failures are always an almost-chambered stoppage, with the round stuck half-way in and pointed at the top of the chamber. Just the tiniest bit of back pressure on the slide releases the lockup and chambering proceeds normally. I suspect it is a function of the peculiar shape of that specific bullet coupled with some tiny variations in overall cartridge length that cause the occasional stoppage. But since I'm about out of the 100g Wolf, and Midway is out of stock with no backorder, and Midway just delivered 1K of the 95g (round nose) Wolf Military Classic, I'm simply going to shoot up the rest of the 100g in my Makarovs, which like it just fine.
The Wolf cone-head failures are always an almost-chambered stoppage, with the round stuck half-way in and pointed at the top of the chamber. Just the tiniest bit of back pressure on the slide releases the lockup and chambering proceeds normally. I suspect it is a function of the peculiar shape of that specific bullet coupled with some tiny variations in overall cartridge length that cause the occasional stoppage. But since I'm about out of the 100g Wolf, and Midway is out of stock with no backorder, and Midway just delivered 1K of the 95g (round nose) Wolf Military Classic, I'm simply going to shoot up the rest of the 100g in my Makarovs, which like it just fine.