10mm as a SD gun

[sqlbullet]

GunLvrNLearner,

You can shoot 40's from a 10mm gun under two circumstances.

1. You buy an aftermarket barrel with the correct chamber. 40 Barrels are available for every gun that I am aware of currently in production in 10mm. The Glock 20 also has aftermarket barrels in 357 Sig and 9X25 Dillon (very cool round).

2. If you are lucky enough to have a Peter Stahl 10mm with dual extractors, I am told you can shoot 40's directly as the extractors will correctly hold the cartridge. This is the ONLY weapon you can do this with.

Shooting 40's in a 10mm chamber can cause two problems. First, both the 10 and the 40 headspace off the length of the cartridge. When the firing pin hits a 40 in a 10mm chamber, the cartridge may rip loose from the extractor (the Stahl, with dual extractors doesn't have this issue), fly forward .25" to the chamber shoulder. If the firing pin is long enough (most are) it will then ignite, push the primer partially or completely out of the pocket, then as pressure builds in the barrel, the case will slam back into the bolt face, embedding the primer into the back of the case. I have seen some really scary pictures of this.

Additionally, copper or lead fouling may accumulate on the chamber shoulder. When 10mm ammo is again fired, this fouling could act as a wedge, making it harder for the bullet to break free from the case. Excessive pressure could result. This is theoretical as I am not aware of this ever being the determined cause of an issue. Clearly Peter Stahl did not consider this a problem, but I would still worry, and carefully clean and inspect the chamber of a Stahl before going from 40's back to 10's.

 

[BlindJustice]

FYI for the O.P.

S&W 1006 is the first 10MM AUto by S&W it's all steel and
tht helps it in recoil management.

THe first Colt 10MM had problems because they put it on the
1911 frame and found it needed to be beefed up which it was and
theDelta Elite looks like a 1911 just a bit different. I've heard
Colt is going to put the Delta Elite back in current production - release
in November.

Likewise S&W brought back the N-Frame 610 a large frame DA
revolver which is able to handle the rimbless 10MM Auto cartridges
with Full Moon clips like the S&W .45 ACP revovlers. THe 610 also
can chamber and fire the .40 S&W also with the full moon clips. WIth a
6" or 4" Bbl. it's a big gun at 3 lbs +

Sounds to me O.P. like you might be better off with a different choice
cartridge to gain some experience in handgunning.

Randall

 

[sigma 40ve]

I thought that Ted Nugent fired .40 out of his 10mm on a regular basis. I myself, have fired .40 out of my G29 without issues. I wouldn't do it on a full time basis, but wouldn't worry about it, if I had to in a pinch.

 

[looper]

"I thought that Ted Nugent fired .40 out of his 10mm on a regular basis. I myself, have fired .40 out of my G29 without issues. I wouldn't do it on a full time basis, but wouldn't worry about it, if I had to in a pinch."

That is absolutely terrible advice and it is plainly foolish to try to shoot .40 s&w in a 10mm chambering. At the least, you'll end up damaging your firearm. Besides, what kind of pinch would you have to be in to do such a thing?

 

[IdahoLT1]

that harold fish story is quite scary. if memory serves me right, it happened in arizona where he had to prove his innocence for usinf self defense because it was the law. The law was since changed and i think he's going through appeals right now. I believe he was crucufied over the rounds being hollow points and that it was a 10mm. He was using the 10mm for Cougar defense as he was hiking in the woods.

 

[pogo2]

My take on Harold Fish

I've read the long account of the Harold Fish story several times, and here is my take on it.

Fish was indeed using a 10mm and hollowpoints, and that fact was used by the prosecuting attorney to impress the jury. But that was only one of several points made by the prosecutor, and there is no way to tell if that was the critical point in the minds of each juror.

I think the fact that really sunk Fish was that his attacker was unarmed. The attacker was a man with a history of mental instability, and he was walking two dogs at a public park. When Fish appeared at the park after a hike, the unleashed dogs charged Fish, barking at him in a menacing way. Fish was alarmed, and drew his gun, firing a shot into the ground to scare the dogs. This worked, and the dogs retreated.

But then the dog owner became enraged at Fish for scaring his dogs, and he charged at Fish, screaming at him. Fish, who was much older than the attacker, then shot and killed the unarmed attacker. The fact that the attacker was unarmed seemed to me to be the critical point with the jury. Fish would have been on better legal ground if there were two attackers, or if the attacker had some sort of weapon in his hand. There was a reasonable doubt that Fish had to fear for his life.

So I think the 10mm arguments were not critical, and were thrown in by the prosecutor to put "frosting on the cake", so to speak.

 

[memphisjim]

10mm is overkill for self defense get weak loads 10mm is made for animals not humans get a 40 or a 45 for people

 

[TexasRifleman]

10mm is overkill for self defense get weak loads 10mm is made for animals not humans get a 40 or a 45 for people

You're joking right? Because if not that makes absolutely no sense at all.

Performance wise it falls between the .357 Magnum and .41 Mag neither of which are "overkill".

Jeff Cooper specifically envisioned the cartridge for combat usage and the original Norma load came from that.

The FBI then adopted the full power 10mm round as a duty weapon, clearly not "overkill" there either.

The FBI lowered the power and eventually went to the .40 because the average agent couldn't take the recoil. It had nothing to do with the round being "overkill".