I have started to reload some of my 45 APC brass I have had for years, with the prices approaching $1.00 a round now seemed like a good time.
What I had was two .50 cal ammo cans full of once fired brass.
They all had been de-primed, and wet tumbled with ss pins.
One of the cans was commercial that I had no trouble reloading.
The other was military once fired, head stamps from 1917-1990.
After I removed the crimp and resized, I started to prime, most primers seated with out a problem but some would not seat all of the way.
Upon examining I found the cases that would not accept the primers to the full depth were all pre 1943.
I checked the primer pockets and found that the pre 1943 cases had primer pockets diameter of .200" and post 43 cases were .210".
There was slight overlap as some 41,42's had .200" and others were .210".
Has any one ever encountered this?
