Jerry, being someone who reloads, have you annealed the necks of the brass cartridge cases?
I've had a few cracked necks before I started annealing them after a certain number of reloads. Both the act of firing each round and then resizing the neck work hardens the brass pretty quickly. Standing the cases in a pan of water to just below the neck and using a propane torch does the trick before running them into the resizer die.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.