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Unread 05-08-2017, 06:13 PM   #15
Chickenthief
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Quote:
Originally Posted by Sky Zero View Post
doesn't higher weight mean more gun powder, thus hotter? maybe I've been getting definitions of grains totally wrong
Gunpowder is a funny thing:
Black powder will burn and build up pressure to a point (@3700bar~53.7kpsi) and then nothing much more happens.
Smokeless on the other hand will readily push 180kpsi given the posibillity.
Wich pretty much mean that you walk a razors edge when reloading modern powders.

This is a standard 45 ACP low pressure load with a bullet set back @1/4" and ended in the 176kpsi range give or take:


Oh, and the good old Kongsberg Colt needed a new barrel and it up and running happy again. And i learned to crimp my bullets in place!
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