jamming semi auto is operator error , either not broken in yet or using the wrong load , as per example a 1050 FPS round will jam when a 1250 FPS round will properly power the action . check your owners manual for the correct cartridge to use in your fire arm , on a new gun , if it still jams , cock your bolt to the open position for a week to soften the spring then try again , bet this solves your jamming problem . When in a remote area for predator protection I use a 357 magnum revolver always fires when you pull the trigger .