My first times to the range with my trapdoor showed a mix of primers that split open.
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Took the pin out, and looks like there is some deformation in the tip...looks like previous pitting. The second 2 cases that didn't split show the imprint of the deformation.
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sorry, it's a hard part to focus the camera on. I don't think my loads were too hot...details are in my range report here. I remember the first time out, the very first round split, the next 4 did not. Leaves me to believe the I should have inspected the pin closer when I disassembled and cleaned it up. Cleanup thread is here
I have another firing pin on the way from the quartermaster's store as a backup while I try to save this one by stoning it nice and round again.Information
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