I was using Winchester Supreme 230 grain SXT in my Sistema. Never had any difficulty with feeding or misfeeds. Seems like Winchester has discontinued this round. The gunshop here in town had Winchester Supreme Elite Bonded PDX1 230 grain JHP's. I have not had a chance to shoot them yet, so haven't switched out my carry ammo in my pistol. Has anyone had experience with these rounds? Any failures or FTFs? The reason I ask is that the profile is different from the SXTs to the PDX1 rounds. Probably just going to have buy a few more boxes and see how they run through my gun.