Three different calibers: 40 S&W, 10mm, and 10mm Magnum. They all use the same bullet, just different amounts of powder.
.40 S&W or 10mm
Lately I've seen references to 10mm handguns. However, I no longer see references to .40S&W. The .40S&W is the same as a 10mm bore, a short 10mm Magnum. For a while there were references & writings about the 10mm Magnum, but I seldom see this term used anymore. Is the present use of 10mm the same as a .40S&W, or is it still the 10mm Magnum?
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And of course the length of the cases. 10mm mag is a pretty obscure round with only AMT chambering the Automag for it for a short period of time.Three different calibers: 40 S&W, 10mm, and 10mm Magnum. They all use the same bullet, just different amounts of powder.
Point of clarity, the 10mm is more properly known as 10mm Auto. This differentiates it from the 10mm Magnum.
Some folks modify the M610 to shoot all three calibers!...someday, perhaps.
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Three different calibers: 40 S&W, 10mm, and 10mm Magnum. They all use the same bullet, just different amounts of powder.
Some folks modify the M610 to shoot all three calibers!...someday, perhaps.
I watched a video not too long ago of Who-Tee-Who shooting a Hi-Point 10mm. During the video, he shot some 40 S&W through it and had one FTE.
I've run no few numbers of 40S&W rounds in four 10mm semi-autos with zero failures to make sure they function in case of TEOTWAWKI.
How is that possible? Don't both rounds headspace the same (at the case mouth). If the 10mm case is longer than a 40 S&W, how does the firing pin in a 10mm auto, reach the primer and set it off on a 40 S&W?I've run no few numbers of 40S&W rounds in four 10mm semi-autos with zero failures to make sure they function in case of TEOTWAWKI.
The 40 is held against the breech face by the extractor.How is that possible? Don't both rounds headspace the same (at the case mouth). If the 10mm case is longer than a 40 S&W, how does the firing pin in a 10mm auto, reach the primer and set it off on a 40 S&W?
Is that a little hard on the extractor?
So the case is .147" away from the correct headspace? I don't think that I would pull the trigger knowing that my round is over an 1/8 of an inch off the chamber.The 40 is held against the breech face by the extractor.
Correct.
That is what many say.
Ok.
The 40 is held against the breech face by the extractor.
So the case is .147" away from the correct headspace?
That is what many say.
Is that a little hard on the extractor?
Ok.
I don't think that I would pull the trigger knowing that my round is over an 1/8 of an inch off the chamber.
Plenty of Glock 10mm guys run .40s&w without problems but yea, the shorter .40 wasn't as accurate from my g40.
BUT only Glock spaces off the bolt with the extractor, not aware of any other pistols that let you do this.
I eventually let the g40 go and got a .40 conversion barrel for my g32 (.357 sig). Just too big.
One thing I do like is that there's lots of very compact .40 handguns but in 10mm they're mostly full size frames to handle hot 10mm auto.
Today there are quite a few more choices in 10mm handguns than just a few years ago when I bought my gen 4 g40.
BUT only Glock spaces off the bolt with the extractor, not aware of any other pistols that let you do this.
I eventually let the g40 go and got a .40 conversion barrel for my g32 (.357 sig). Just too big.
One thing I do like is that there's lots of very compact .40 handguns but in 10mm they're mostly full size frames to handle hot 10mm auto.
Today there are quite a few more choices in 10mm handguns than just a few years ago when I bought my gen 4 g40.
I never realized that 40S&W is the same bullet size as 10mm Auto, until I saw this thread. I wonder if I could therefore buy a Glock 29 to replace my wonderful G27 and then fire all the 40S&W ammo I already have through it. Would it be likely there'd be any problems consistently firing the shorter and lower powered 40 cal rounds in the G29?
So what you're saying is .40 can be shot in a .10?I never realized that 40S&W is the same bullet size as 10mm Auto, until I saw this thread. I wonder if I could therefore buy a Glock 29 to replace my wonderful G27 and then fire all the 40S&W ammo I already have through it. Would it be likely there'd be any problems consistently firing the shorter and lower powered 40 cal rounds in the G29?
That's the question I'm asking, yes. From comments in the thread it seems that it can, but I want to hear about any long-term problems anyone might know about from doing so.So what you're saying is .40 can be shot in a .10?
Potential issues of which I'm aware:
1. Just like shooting many specials in magnum revolvers, build up in the chamber may prevent the longer 10mm cartridge from chambering properly. Proper cleaning rectifies this.
2. The extractor could wear prematurely or fail. I keep a spare on hand, but I've never actually seen or heard of this happening.
1. Just like shooting many specials in magnum revolvers, build up in the chamber may prevent the longer 10mm cartridge from chambering properly. Proper cleaning rectifies this.
2. The extractor could wear prematurely or fail. I keep a spare on hand, but I've never actually seen or heard of this happening.
I have never owned a 10mm but my semi educated guess to that question would be NO! The reason for that answer is only a guess BUT since both the .40 and the 10mm are rimless cases, don't they headspace on the mouth of the brass? If my thinking is so, then wouldn't the .40 S&W cartridge drop down about a quarter of an inch into the chamber of a 10 mm.I never realized that 40S&W is the same bullet size as 10mm Auto, until I saw this thread. I wonder if I could therefore buy a Glock 29 to replace my wonderful G27 and then fire all the 40S&W ammo I already have through it. Would it be likely there'd be any problems consistently firing the shorter and lower powered 40 cal rounds in the G29?
I never realized that 40S&W is the same bullet size as 10mm Auto, until I saw this thread. I wonder if I could therefore buy a Glock 29 to replace my wonderful G27 and then fire all the 40S&W ammo I already have through it. Would it be likely there'd be any problems consistently firing the shorter and lower powered 40 cal rounds in the G29?
Can you physically shoot a 40 S&W in a 10mm chambered pistol - Yes. Should you do it - No.So what you're saying is .40 can be shot in a .10?
If you want a 40 S&W, buy a 40S&W.
No, I've got 2 .40s, no .10, was under the impression from what I was reading it was OK.Can you physically shoot a 40 S&W in a 10mm chambered pistol - Yes. Should you do it - No.
If you want a 40 S&W, buy a 40S&W.
Thanks.
Just because you can does not mean you should. Shoot caliber in the barrel configured for it, then no problem and no possible injury.
Larry
Larry
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