Ok... how do you know? I've reused primers I removed for years without incident.Just use your press. I've done this with thousands of rounds with no issues. The cases of folks setting off primers are from priming, where the primary interface with the primer is on the bottom and it's meant to go off from there. Just make sure you don't try and re-use the primers after they've been removed....no matter how much you paid for them. Ask me how I know.