Discussion in 'Handloading and Reloading' started by watermonger, Apr 16, 2021.
Pictures of the primed casing.
The primer exited the case as far as the headspace allowed.
It happens every time, but in a normal firing cycle the pressure of burning propellant seats the brass back over the primer.
You've just discovered why blank brass has oversized flash holes; make the hole big enough and the primer won't back out.
Loaded just a primer and pressed in a wax plug. On the first few I had not drilled out the flash hole o the primers backed out, but I fixed that
Give it powder and a bullet & it'll be fine
As already mentioned above, this isn't what is happening.
When the primers are fired, they back out of the primer pocket due to the pressure created. (opposing equal force in opposite directions) They stop against the breech face. They are then reseated in the primer pocket as the case is forced backwards during recoil. If there is not enough pressure to cause the case to move to the rear, the primers remain protruding out of the primer pocket.
Unless primers are held in the primer pockets by having a crimp applied, they all back out when fired. If they get reseated has to due with the pressure created to push the case to the rear
Thanks for asking the question though. It's good to share experience when "experimenting". I've tried different cases loaded with only a primer but didn't think about the proud primer when I was finished.
Au contraire, that's exactly science!
You wondered a wonder, and did an experiment; a lab coat and a dozen post-doc research assistants wouldn't make it more scientific.
The only improvement would be a larger sample size. To satisfy the statisticians.
Either open up the flash hole or convert them to 209 shot gun primers
And a government grant.
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