trimming 40 brass

poker2112 · November 15, 2007, 08:35 PM

whats the minimum and max lenght for trimming 40 brass?

amamnn · November 15, 2007, 11:52 PM

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.

Alleykat · November 17, 2007, 08:28 PM

Can't imagine trimming straightwall handgun ammo. What makes you think you should trim your .40 brass?

The Tourist · November 17, 2007, 08:33 PM

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.

Alleykat · November 17, 2007, 08:49 PM

Hadn't thought of revolvers' shooting .40 Sheitz und Weazel. Ya think the OP's shooting .40 through a revolver?

The Tourist · November 17, 2007, 09:15 PM

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.

Shoney · November 20, 2007, 03:42 PM

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.

WESHOOT2 · November 23, 2007, 11:17 AM

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

You DO have manuals, don't you?

November 15, 2007, 08:35 PM	#1
poker2112 Member Join Date: September 24, 2006 Posts: 62	trimming 40 brass whats the minimum and max lenght for trimming 40 brass?

November 15, 2007, 11:52 PM	#2
amamnn Senior Member Join Date: May 13, 2006 Location: WA, the left armpit of the USA Posts: 1,323	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. __________________ "If the enemy is in range, so are you." - Infantry Journal

November 20, 2007, 03:42 PM	#7
Shoney Senior Member Join Date: February 21, 2002 Location: Transplanted from Montana Posts: 2,311	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. __________________ I pledge allegiance to the Flag - - -, and to the Republic for which it stands….Our Forefathers were brilliant for giving us a Republic, not a democracy! Do you know the difference??? and WHY?http://www.wallbuilders.com/LIBissue...les.asp?id=111

November 23, 2007, 11:17 AM	#8
WESHOOT2 Senior Member Join Date: February 20, 1999 Location: home on the range; Vermont (Caspian country) Posts: 14,324	Suprising question... ....as EVERY manual I own shows this data. You DO have manuals, don't you? __________________ . "all my ammo is mostly retired factory ammo"

November 17, 2007, 08:28 PM	#3
Alleykat Junior member Join Date: July 26, 2007 Posts: 3,668	Can't imagine trimming straightwall handgun ammo. What makes you think you should trim your .40 brass?

November 17, 2007, 08:33 PM	#4
The Tourist Junior member Join Date: June 20, 2005 Posts: 2,348	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.

November 17, 2007, 08:49 PM	#5
Alleykat Junior member Join Date: July 26, 2007 Posts: 3,668	Hadn't thought of revolvers' shooting .40 Sheitz und Weazel. Ya think the OP's shooting .40 through a revolver?