Now you need to test for function, to make sure it fires the primers consistantly.
Take a fired case, de-cap the primer and insert a new one with a half-dozen cases.
Fire the primer and make sure you get a good hit and the primer goes off each time.
Not all primers are equal. CCI is the hardest, and Federal the softest. Winchester & Remington are in the middle.
With my 308 handi, CCI's are not consistant I get a 10%-15% FTF rate. Federal Primers are a 100%.
If you do not reload, then you just take your chances with factory ammo.
Good Luck !