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Old November 15, 2007, 08:35 PM   #1
poker2112
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trimming 40 brass

whats the minimum and max lenght for trimming 40 brass?
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Old November 15, 2007, 11:52 PM   #2
amamnn
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Assuming you are talking about the .40 S&W look here:

http://www.reloadbench.com/cartp.html



It's a better site for reloaders, too.
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Old November 17, 2007, 08:28 PM   #3
Alleykat
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Can't imagine trimming straightwall handgun ammo. What makes you think you should trim your .40 brass?
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Old November 17, 2007, 08:33 PM   #4
The Tourist
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You need to trim straight-wall revolver ammo to a uniform length so you can roll crimp. (Tube feed rifles, as well.)

For me, I just like to square up the mouth, and bevel the edges a bit.

I don't trim .45 ACP cases, because I think most people lose them before they grow.

The .40 SW round might be of sufficient pressure as to stretch brass more than a .45 ACP.
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Old November 17, 2007, 08:49 PM   #5
Alleykat
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Hadn't thought of revolvers' shooting .40 Sheitz und Weazel. Ya think the OP's shooting .40 through a revolver?
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Old November 17, 2007, 09:15 PM   #6
The Tourist
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Quote:
Originally Posted by Alleykat
Ya think the OP's shooting .40 through a revolver?
Well, you have to learn it if you have a SW 610.

But even for daily plinking, I like a taper crimp with uniform brass.
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Old November 20, 2007, 03:42 PM   #7
Shoney
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Semi auto brass actually gets shorter with each loading. It is shortened only a micro bit each time, but after many lodings the resulting shortening is very evident.
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Old November 23, 2007, 11:17 AM   #8
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Suprising question...

....as EVERY manual I own shows this data.

You DO have manuals, don't you?


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