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Joined: Jan 2006
Posts: 69,249
Campfire Kahuna
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OP
Campfire Kahuna
Joined: Jan 2006
Posts: 69,249 |
I'm fairly new to the 9mm. I've had one for a number of years but haven't loaded much for it.
A while back I got a deal on 1000 once fired 9mm cases. Most of them are military and still have the original primers. I haven't used them but got them out this morning to load up a few. I miked a few and found them to be between .735 and .745. The specs call for a trim to .751. Just how short can they be anyway? What happens if I shoot a .735?
“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Jun 2003
Posts: 10,582
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2003
Posts: 10,582 |
I have never measured or trimmed 9mm brass, and I have never had a problem. (I do gauge loaded rounds.) If the military cases are crimped around the primer pocket, you will have to swage them.
"Don't believe everything you see on the Internet" - Abraham Lincoln
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Joined: Dec 2007
Posts: 1,523
Campfire Regular
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Campfire Regular
Joined: Dec 2007
Posts: 1,523 |
As long as the firing pin can reach the primer and hit it hard enough, it goes bang. Is that length after sizing? Because they will shorten up on firing and grow after sizing. They probably shade the short side so the pistols will run better dirty, but they obviously worked the first time. Might depend on your gun.
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Joined: Jan 2006
Posts: 69,249
Campfire Kahuna
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OP
Campfire Kahuna
Joined: Jan 2006
Posts: 69,249 |
I resized a few and found that they grow about .007. The one's that measure .735 are now .742, very close to the minimum .744. I guess I'll load up a bunch and see what happens.
Thanks for the info.
“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Dec 2019
Posts: 16,865
Campfire Ranger
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Campfire Ranger
Joined: Dec 2019
Posts: 16,865 |
Saami luger diagram is .754
For reference 9x18 makarov is .713
-OMotS
"If memory serves fails me..."
Quote: ( unnamed) "been prtty deep in the cooler todaay "
Television and radio are most effective when people question little and think even less.
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Joined: Nov 2012
Posts: 322
Campfire Member
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Campfire Member
Joined: Nov 2012
Posts: 322 |
I have never trimmed a straight wall brass.
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