357 mag with H-110 and 158gr semi JHP. (Update post #41)

I had a Federal Large Pistol primer fire in a Lee AutoPrime. Turned out it was one of those small primer cases. The primer blew a piece of brass into my gut, passing trough a flannel shirt.

Lee said I was lucky that the primer did not set off the other 100 primers in tray.

The Federal primers are more sensitive. This one was set off by crushing it - not hitting it. My loading bench chair is on wheels. The wheels fire federal primers when I roll over them. Never set off any other brand primer.

Wear your safety glasses.
 
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