Removing military primer crimps

[m&p45acp10+1]

Even if you are using .223Rem brass you are still going to to get some with crimped primer pockets. I pick up pretty much every head stamp made of brass at the range. PMC most tend to have crimped pockets, as do a lot of Federal FC stamped brass.

I know Hornady brass does not have crimped pockets, and tends to be great for case life as well. I will go out of my way to pick it up if I can.

I use the Lyman primer pocket reamer. It works, it can be chore when doing a couple of thousand cases. I full length resize then trim/chamfer/debur. Then I remove the crimps from the pockets. Takes about a minute or so for each sized case if I am going at a steady, not rushing pace. The good part is you only have to remove the crimp once.