Joe Sacco
Member
I've got some range brass that is coming out of the re-sizing die measuring between .755 and .760. Is this dangerous to load and shoot?
Thanks in advance, Joe
Thanks in advance, Joe
9 mm brass OAL
- Thread starter Joe Sacco
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Sport45
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I'm going to go out on a limb here and say it's okay to use. I've never trimmed, or measured for that matter, 9mm brass. The only 9mm I've loaded that was too short upon further inspection said ".380 Auto" on the headstamp.
You are only talking about .006" too long. In my opinion, that is not enough to cause an "out of battery" condition that prevents a handgun from firing or exposes thin brass to "unsupported" chamber areas. If she blows at .006" over, she'll probably blow if it was trimmed.
You are only talking about .006" too long. In my opinion, that is not enough to cause an "out of battery" condition that prevents a handgun from firing or exposes thin brass to "unsupported" chamber areas. If she blows at .006" over, she'll probably blow if it was trimmed.
The Bushmaster
Member
If they are truly 9mm X19mm (luger/parabellum) stop measuring the dang things. resize/decap, load'm, shot'm and do it again until you lose'm...I have never had to resize any 9mm cases. I don't even bother to check them for length anymore...
caz223
Member
Tell me your secret.
Most of my brass is .746 or so.
If your gun locks up on it, shoot it and be happy.
Incidentally, what headstamp is your long brass?
Most of my brass is .746 or so.
If your gun locks up on it, shoot it and be happy.
Incidentally, what headstamp is your long brass?
Joe Sacco
Member
caz223,
Most of the stretching brass appears to be older winchester. Note the brass is going into the die at about .745+-, but is coming out .755 +. Usually I only load once fired Federal that goes in about .745 and comes out between .750-.754. I'm going to load a acouple hundred rounds of the mixed range stuff and see what happens.
Most of the stretching brass appears to be older winchester. Note the brass is going into the die at about .745+-, but is coming out .755 +. Usually I only load once fired Federal that goes in about .745 and comes out between .750-.754. I'm going to load a acouple hundred rounds of the mixed range stuff and see what happens.
The Bushmaster
Member
If you do your part they will all go "BANG"
.....
.....caz223
Member
I'm sure it will be fine. Winchester brass in 9mm has been very good to me.
.755 is a great target, if all of your 9mm brass was .755, your accuracy and function would be superb.
Chambers in most 9mm combat arms are generous, and long with long throats and leades (Possible exception:CZ, they have been known for short chambers and rifling almost immediately after.)
I don't think there's a magic number as far as too long. I would assume accuracy would start diminishing when the case length got too long, but that would depend on the gun in question, a match grade gun might be better off at .755 than .760 or longer, but guns with long chambers may benefit (Better accuracy.) from the extra case length.
Too long, and the gun may fail to lock up, put rearward pressure on the extractor (Bad for the claw.) or exhibit other symptoms.
Make sure you gun doesn't fire when out of battery. (I doubt that moderately long brass would cause an out of battery condition, but theoretically, it might.....)
I'm prolly making way too much out of it, if your gun likes it, shoot it.
.755 is a great target, if all of your 9mm brass was .755, your accuracy and function would be superb.
Chambers in most 9mm combat arms are generous, and long with long throats and leades (Possible exception:CZ, they have been known for short chambers and rifling almost immediately after.)
I don't think there's a magic number as far as too long. I would assume accuracy would start diminishing when the case length got too long, but that would depend on the gun in question, a match grade gun might be better off at .755 than .760 or longer, but guns with long chambers may benefit (Better accuracy.) from the extra case length.
Too long, and the gun may fail to lock up, put rearward pressure on the extractor (Bad for the claw.) or exhibit other symptoms.
Make sure you gun doesn't fire when out of battery. (I doubt that moderately long brass would cause an out of battery condition, but theoretically, it might.....)
I'm prolly making way too much out of it, if your gun likes it, shoot it.
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