Federal small pistol primers.

[Shak3s1977]

My glock 17 never had an ignition issue, but when I finally disassembled the slide it was gross. In my defense it was my first firearm.

This was my first handgun. I literally just fixed it 2 weeks ago. I just assumed it was my handloads. When I wasn't having any problems with my other 9mm's, with the same ammo, I started putting 2 and 2 together. Needless to say, I cleaned the firing pins on all of my handguns that weekend. Thank God for Youtube lol.

 

[Walkalong]

just seat primers, securely, to the bottom of the pocket.

Yep.

 

[Catpop]

Only problem I encountered was with S&B 45 acp brass. Primers flattened before seating correctly.