It's the ammo.
Only time my Beretta 92FS has ever jammed was early in its life cycle and with Remington UMC. It exhibited the same problems you state. It is a heavy-for-caliber weapon likely designed for NATO pressures. Stick with Fiocchi, S&B, or PMC. Mine likes all of those. After it breaks in, you could probably go back and try UMC again, and it will likely work. Mine feeds UMC just fine now, but unless it is significantly cheaper than everything else, I never buy it.
Only time my Beretta 92FS has ever jammed was early in its life cycle and with Remington UMC. It exhibited the same problems you state. It is a heavy-for-caliber weapon likely designed for NATO pressures. Stick with Fiocchi, S&B, or PMC. Mine likes all of those. After it breaks in, you could probably go back and try UMC again, and it will likely work. Mine feeds UMC just fine now, but unless it is significantly cheaper than everything else, I never buy it.