Can .40 S&W be fired in a 10mm barrel?
As we know, .40 S&W is a shorter 10mm.
So, can I fire .40 S&W safely from a 1911 chambered in 10mm?
Re: Can .40 S&W be fired in a 10mm barrel?
Quote:
Originally Posted by
BerksCountyDave
As we know, .40 S&W is a shorter 10mm.
So, can I fire .40 S&W safely from a 1911 chambered in 10mm?
No. Because .40 and 10mm both headspace off of the case mouth.
This contrasts with a .357 magnum and .38 special because these both headspace off of the rim of the cartridge, so additional length of the cartridge has no effect on headspacing.
Re: Can .40 S&W be fired in a 10mm barrel?
Max nailed it.
However, if you have a S&W 610 revolver or any other S&W wheelgun in 10mm, you can use moon clips to headspace the shorter .40 S&W and shoot them in the 610 all day long. Night, too, if the neighbors are easygoing and amenable.
Noah
Re: Can .40 S&W be fired in a 10mm barrel?
Probably would fire...as the others said, the round headspaces on the case mouth BUT....the extractor probably would hold the round against the breechface tight enough to fire. I doubt the gun would feed the shorter rounds properly.
Re: Can .40 S&W be fired in a 10mm barrel?
Damn. I've been hunting high and low for a 1911 in .40 locally. Found a 10mm, but no 40's yet.
Re: Can .40 S&W be fired in a 10mm barrel?
You can have a 40 s&W barrel fitted.
Re: Can .40 S&W be fired in a 10mm barrel?
Quote:
Originally Posted by
thelemite
You can have a 40 s&W barrel fitted.
Yeah, but I'm wondering what that would cost me after the cost of fitting the barrel plus the cost of the barrel itself. :cool:
Re: Can .40 S&W be fired in a 10mm barrel?
Quote:
Originally Posted by
BerksCountyDave
Yeah, but I'm wondering what that would cost me after the cost of fitting the barrel plus the cost of the barrel itself. :cool:
Good point :)
I have a double stack 40 s&W that I had a 10mm barrel fit for. it was about 325$ fitted.
Re: Can .40 S&W be fired in a 10mm barrel?
Why not simply buy some brass from Starline, use the 180 grain bullets and roll your own 10 mm? Can download to 40 S&W levels or go up to full load 10 mm. Bear in mind that a 1911 with a 10 mm barrel may not have the original barrel as if memory serves me correctly, the Colt 10 mm was not called a 1911. Dave_n
Re: Can .40 S&W be fired in a 10mm barrel?
Quote:
Originally Posted by
Dave_n
Why not simply buy some brass from Starline, use the 180 grain bullets and roll your own 10 mm? Can download to 40 S&W levels or go up to full load 10 mm. Bear in mind that a 1911 with a 10 mm barrel may not have the original barrel as if memory serves me correctly, the Colt 10 mm was not called a 1911. Dave_n
10mm brass is expensive and not all that common. .40 brass is plentiful and CHEAP.