I made a couple thousand .32 PB gas checks right after receiving my die. 90% are made from Pepsi product cans. 10% from Coca-Cola product cans. The local Pepsi bottler uses a thiner can than coke. I just started casting 80gr .32 cal bullets using Lyman's mold. I seated the checks using my Lyman 450, Lyman gas check seater and a .311 H&I die. Then I went back to size and lube. At this stage 50% of the checks (all Pepsi cans) tore the base of the check from the side either partially around the circumference or all around it. The later case causing me to have to fish the base of the check out of the H&I die.
The few bullets I tried seating and sizing in one stroke seemed to have a lower % of these failures. The bullets I sized and lubed then seated the check had the least %.
I did not experience this with the 9mm checks.
Have you encountered this before? If so what was the solution other than what I experienced? I really hate wasting work/parts.
A second problem I have had with all of my PB dies is when forming the cup the disk will be centered in the depression but the cup will turn out slightly lop sided. (not pop sided) This seems to add to the incidence of the above problem. Any fix?
=#÷%" auto correct.