What ammo? Just want to put that out there? If it’s cheap steel cased or aluminum cased I would suspect the ammo-if it’s reloads I would also suspect the same-it would be ammo related. If your chamber is clean and good brass cased ammo or even better your carry ammo fails to go into battery it’s something else.
A good clean and inspection of the chamber and feed ramps is a start.
A good clean and inspection of the chamber and feed ramps is a start.