I've shot a box of Sellier & Bellot ball ammo and 200 rounds of flat nose Winchester with no issues during recent session - I wanted to pick up some Fiocchi but Scheels didn't have any, heard some folks had issues with that and Winchester. I shot Federal Hydra Shok deep with no issues too. Most of my rounds have been Sargeant Major ball ammo, steel cased because I can get a 1000 rounds for $240 delivered - that ammo has given me one FTFs per 50 rounds even after removing ramp edge/lip and polishing. Those FTFs were no biggie for me because I'd just bump/nudge slide forward and continue shooting. I find that the sights are spot on, don't like the wide rear sight though. Mags were stiff initially but have loosened up, still need loader for 12 cap mag. Slide stop was stiff too but I can operate it one handed now. Very happy with gun and waiting for upgrades like night sights and trigger job.