Yes lonewolf KKM storm lake and others make conv barrels

 

http://www.glockmeister.com/GlockBarrelCcompatibility.asp

 

What happens if you try to shoot a .40 in a 10mm barrel? Will it fit?

I know many have accidentally shot 9mm in a .40 barrel. I have done so myself. It shot but didn't cycle.

 

yes it wi

lt works. I am not sure I would make a habit of it. But I have done it.

 

What happens if you try to shoot a .40 in a 10mm barrel? Will it fit?

I know many have accidentally shot 9mm in a .40 barrel. I have done so myself. It shot but didn't cycle.

Never have figured out that particular "accident" - there are THREE places on a Glock that show the caliber of that pistol:

Barrel
Magazine
Frame

There are TWO places to find the caliber if using factory ammo:

The box
The headstamp of the cartridge


Simply match the markings from the ammo to those on the gun. If you can't/won't/don't, you're (IMO) too stupid to use a gun, and shouldn't be allowed to, until you've beaten a bloody hole through your forehead with said pistol.

And yes, I've seen it done. I made fun of my coworker that day, and still do, whenever I see him - and it's been two years.

Just...wow.

 

Never have figured out that particular "accident" - there are THREE places on a Glock that show the caliber of that pistol:

Barrel
Magazine
Frame

There are TWO places to find the caliber if using factory ammo:

The box
The headstamp of the cartridge


Simply match the markings from the ammo to those on the gun. If you can't/won't/don't, you're (IMO) too stupid to use a gun, and shouldn't be allowed to, until you've beaten a bloody hole through your forehead with said pistol.

And yes, I've seen it done. I made fun of my coworker that day, and still do, whenever I see him - and it's been two years.

Just...wow.

I went shooting with a coworker who got a box of ammo that was marked .40, but contained 9mm. It was sold at the range we were shooting at. The bullets keyholed, and wouldn't cycle, but it didn't harm the barrel. He only fired 2 rounds of it before we looked closer at the ammo itself.

 

While .40 out of 10mm may function, I'm going to say "no" from a safety standpoint.

If you want to shoot .40, get a conversion barrel or a gun meant for .40.

 

What happens if you try to shoot a .40 in a 10mm barrel? Will it fit?

I know many have accidentally shot 9mm in a .40 barrel. I have done so myself. It shot but didn't cycle.

I believe you would have a headspace problem the .40 would slosh around in the 10mm chamber.

 

Most of the time the extractor will hold the .40 against the striker and they will go off. That's how people sometimes shoot a 9 in a .40 and a .40 in a .45.

I was at a range one day and found some .40's blown out to .45. I asked the guy that was there ( a well known gun writer) what had happened. He said one of his friends had salted his ammo can of .45's with some .40's. It took him a few rounds to figure it out.

WP

 

As suggested one may be able to fire 9mm in a .40 also but it is probably not a good idea. I think the best answer here is a conversion barrel.

 

[ame="http://www.youtube.com/watch?v=AwXtEm70Q0M"]Shooting .40 S&W Through 10mm Glocks. YES, it works fine. NO modification needed AT ALL - YouTube[/ame]

Shooting 40 S&W Ammo out of a Glock 29 10mm Barrel.

 

Never have figured out that particular "accident" - there are THREE places on a Glock that show the caliber of that pistol:

Barrel
Magazine
Frame

There are TWO places to find the caliber if using factory ammo:

The box
The headstamp of the cartridge


Simply match the markings from the ammo to those on the gun. If you can't/won't/don't, you're (IMO) too stupid to use a gun, and shouldn't be allowed to, until you've beaten a bloody hole through your forehead with said pistol.

And yes, I've seen it done. I made fun of my coworker that day, and still do, whenever I see him - and it's been two years.

Just...wow.

Do you read the caliber on every magazine you put in your gun before you put it in?

The fact that Glock uses the same frames and the same size magazines inhibits this issue.

I went shooting with my G23 and G19. Didn't notice and put a mag in the 23 then started shooting. It was acting weird.

When I figured out what I have done I made sure the mags are separated in the bag as well.

It can happen and it does happen quite a bit.

 

Shooting .40 S&W Through 10mm Glocks. YES, it works fine. NO modification needed AT ALL - YouTube

Shooting 40 S&W Ammo out of a Glock 29 10mm Barrel.

It is on youtube...it must be safe

 

It is on youtube...it must be safe

His shirt said "I love guns and coffee"... must be legit.

 

Do you read the caliber on every magazine you put in your gun before you put it in?

The fact that Glock uses the same frames and the same size magazines inhibits this issue.

I went shooting with my G23 and G19. Didn't notice and put a mag in the 23 then started shooting. It was acting weird.

When I figured out what I have done I made sure the mags are separated in the bag as well.

It can happen and it does happen quite a bit.

Um, yes.

And, while not the largest collection in the world, I do have several Glocks with which I qualify annually. G17, G19, G22, G23, G27.

What I have tried, is to simply pay attention to what I'm doing. You know, like learn the difference between 9mm and .40 ammo, since they're not that similar physically - and make sure the correct mags are in the correct guns. It's not rocket science, and my elementary aged children can do it. Of course, I don't allow them to make excuses for failing to pay proper respect and attention to detail when handling firearms.

 

Apparently nobody ever makes mistakes and if anyone ever does it seems that they shouldn't be able to ever own a firearm. We should take this lesson and from now on everyone needs to be perfect like wprebeck. :notworthy:

 

It is not humanly possible to be perfect, but when it comes to firearms, one should make every effort to be.

 

I just don't see how it's possible to load 9mm into a .40 caliber magazine. If you're paying a bit of attention, which you should be doing while shooting - then you'd know you picked up the wrong bullet.

Not to mention, paying attention to mags you're loading or the gun into which you are inserting the mags.

Instead of accepting responsibility for dumbass behavior, we have allegedly grown folks who make excuses. That's the problem "I" have - just say that you made a dumb mistake, instead of glossing over it, and pretending it wasn't a stupid mistake.

 

I just don't see how it's possible to load 9mm into a .40 caliber magazine. If you're paying a bit of attention, which you should be doing while shooting - then you'd know you picked up the wrong bullet.

Not to mention, paying attention to mags you're loading or the gun into which you are inserting the mags.

Instead of accepting responsibility for dumbass behavior, we have allegedly grown folks who make excuses. That's the problem "I" have - just say that you made a dumb mistake, instead of glossing over it, and pretending it wasn't a stupid mistake.

That i don't have a problem with, yes it is a stupid mistake, but i don't think that anyone who makes that stupid mistake should be prohibited from using firearms again

 

I just don't see how it's possible to load 9mm into a .40 caliber magazine. If you're paying a bit of attention, which you should be doing while shooting - then you'd know you picked up the wrong bullet.

Not to mention, paying attention to mags you're loading or the gun into which you are inserting the mags.

Instead of accepting responsibility for dumbass behavior, we have allegedly grown folks who make excuses. That's the problem "I" have - just say that you made a dumb mistake, instead of glossing over it, and pretending it wasn't a stupid mistake.

I've had people hand me a $10 bill instead of a $20. I usually berate them for a few minutes and tell them how they should not be allowed to use money again. On each bill, it says numerically in EIGHT places and it is printed in words in Two additional places, yet people still make these mistakes!

Just kidding, but one black magazine looks just like another and I could see someone that is not paying attention getting them mixed up. I bought a 9mm barrel and a .357 Sig barrel for my Glock 23. I bought magazines for each caliber, and put colored baseplates on them so I could tell the difference and hopefully not make the same mistake.

 

There are a number of reasons why you shouldn't fire the wrong caliber in a gun. Here are two reasons. The first regards the .40/10mm.

http://www.thegunzone.com/10v40.html

http://www.thegunzone.com/colt45-40.html

WP

 

Um, yes.

And, while not the largest collection in the world, I do have several Glocks with which I qualify annually. G17, G19, G22, G23, G27.

What I have tried, is to simply pay attention to what I'm doing. You know, like learn the difference between 9mm and .40 ammo, since they're not that similar physically - and make sure the correct mags are in the correct guns. It's not rocket science, and my elementary aged children can do it. Of course, I don't allow them to make excuses for failing to pay proper respect and attention to detail when handling firearms.

I'm not an idiot. I sure know the difference between 9mm and .40. but a moment of not paying attention and the 9mm mag goes in the wrong gun.

I bought orange plates for some of my magazines and put them on the 9mm mags. No more problems.

 

I'm not an idiot. I sure know the difference between 9mm and .40. but a moment of not paying attention and the 9mm mag goes in the wrong gun.

I bought orange plates for some of my magazines and put them on the 9mm mags. No more problems.

I highlight the caliber with a colored crayon (different for each caliber), then wipe it down. The color stays in the caliber stamp. I shoot 9mm, 40, 357Sig and 45GAP. All of those magazines look similar at first glance.

 

There are a number of reasons why you shouldn't fire the wrong caliber in a gun. Here are two reasons. The first regards the .40/10mm.

http://www.thegunzone.com/10v40.html

http://www.thegunzone.com/colt45-40.html

WP

Well then, this must be indisputability true, it was on the internet.

 

I just don't see how it's possible to load 9mm into a .40 caliber magazine. If you're paying a bit of attention, which you should be doing while shooting - then you'd know you picked up the wrong bullet.

Not to mention, paying attention to mags you're loading or the gun into which you are inserting the mags.

Instead of accepting responsibility for dumbass behavior, we have allegedly grown folks who make excuses. That's the problem "I" have - just say that you made a dumb mistake, instead of glossing over it, and pretending it wasn't a stupid mistake.

It's not an issue of loading 9mm rounds into a .40 caliber magazine. It's putting the 9mm magazine in the G23 that is the mistake.

As you know, they look the same and fit the same. The gun cycles and loads the rounds without a problem.

Loading a 9mm round into the .40 caliber magazine feels weird. I tried it. You immedietly feel that something is wrong.

 

Marker, Did you actually read the articles?

WP

 

Marker, Did you actually read the articles?

WP

Didn’t have to, I have a Glock 29 and shoot 40 S&W all day long.

 

One more for ya!

http://www.glocktalk.com/forums/showthread.php?t=1495496&highlight=10mm,+40+S&W