Minimum 9mm case length?


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meanmotorscooter
March 8, 2009, 02:39 PM
I reloading some 9x19 now on a single stage press. In the process of charging some cases I set one case next to another and it was visibly shorter. The shorter case is a Sellier & Bellot. It measured .716. I measured a handful of cases and most are close to .750. What's the minimum case length that I should keep before I consider a case garbage?

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rcmodel
March 8, 2009, 02:49 PM
Max Case length is .754".
Trim Too length is .744".

.716" sounds like a .003" too long .380 ACP!

rc

lgbloader
March 8, 2009, 02:56 PM
I like to stay around 0.750 for my Lengths. What you have there is closer to a long 380 auto (9mm Kurz).

With the loads I use, I would just put that one in the scrap bucket.

LGB

lgbloader
March 8, 2009, 02:57 PM
Awe... RC, you beat me to it. I was in the middle of answering and my wife asked me to help her loosen a jar in the kitchen.

LGB

bullseye308
March 8, 2009, 04:00 PM
Sounds like someone trimmed a 9mm down to use in a 380. I have run into it before a few times and would not think it is a good idea to do that. Crush it with vice grips and chuck it in the scrap bucket. Now it can't be confused with good brass.

rcmodel
March 8, 2009, 04:22 PM
You can't trim a 9mm down to use in a .380 ACP. They are much larger at the case rim.

What you can do is trim them down to use in a 9x18mm MAK.

Case length on them is .713" and the head size is basically the same.

rc

meanmotorscooter
March 8, 2009, 04:43 PM
Yea, weird. It says 9mm on the headstamp. I'll chuck it. I went through all the other S&B brass in the batch I bought and they were all good.

Mal H
March 8, 2009, 04:49 PM
I'm curious as to what the headstamp says. Is it a 9mm Luger? Is it the same as any other S&B cases you have? It could be a single error in that lot of brass.

As rcmodel says, it can't be a .380 as they are much smaller (relatively) in all outside dimensions.


[Edit]
mms posted as I was looking at dimensions and composing. ;)

rcmodel
March 8, 2009, 04:55 PM
Was this used brass you got somewhere?

If so, it is a 9mm someone trimmed to use for a 9mm MAK pistol.

People do that for some reason, and as you found out, it is a royal PITA when you find them mixed in with 9mm range brass.

rc

RandyP
March 8, 2009, 05:58 PM
Bear in mind that S&B .380 ammo is headstamped 9mm Br. C. (Browning Court)

bullseye308
March 8, 2009, 08:18 PM
Looking at some I have found, the headstamp says 9mm M on it. Guess that is a makarov. Ooops. :(

meanmotorscooter
March 8, 2009, 08:25 PM
It says S&B 9mmM. I guess it's 9mm Mak

Mal H
March 8, 2009, 08:44 PM
Amazing what one single little character makes, eh? As you surmise, that is a standard 9mm Mak case that got picked up with the regular 9mm Luger cases. No trimming was involved.

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