This one is for rifle only. It would cut a large pistol primer pocket too deep,(because rifle primers are a little bit taller).
If you're using that RCBS press to prime, be sure it's mounted to a stiff strong table, that table has lots of weight, (or it's bolted to the floor), then put some muscle into priming those cases. Or grab the back of the press with your off hand to brace it, then pull your hands together. Don't worry about "setting off the primer
". A steady pull on the handle will NOT set off a primer. Slamming the handle however, might!