Caliber choices for the real tiny ones...

[simonrichter]

While up until the 90ies (or so), pocket guns usually were made in correspondingly small calibers like .22lr .25 ACP, .32 ACP or .380 ACP (or .32 SW or 38 SPL for the wheelguns), the real tiny mouse guns even in .22 short.

In recent years, that seemed to have changed, since there are a lot of real small guns in calibers which were formerly confined to full (or at best compact) size service pistols. Now there are even guns which could be considered mouse guns dimension-wise while being packed with 9mm, or even .40 S&W and .45 ACP.

I wonder whether it makes much sense packing such an amount of power into such small guns, in terms of controlled firing and muzzle energy. E.g. is a 9mm out of a, say, 2,5inch barrel that much stronger than a .380, taking into consideration that the .380 was originally designed for short barrels while the 9mm must exhaust an enourmous amount of unburned powder, propelling the bullet only a little more...? At the same time, in any case, the 9mm is going to kick a lot harder, not to speak of .40 and .45...

I'm sure you firearms wizards on this forum will enlighten me

 

[m&p45acp10+1]

The super small guns in .45 ACP, and .40 S&W are prone to choking if one limp wrist them. I have seen a few guys that did great for one or two mags. After fatigue caught up they started limp wristing, and FTF problems started.

 

[bonefamily]

That's a good questions, simonrichter - and one that I hope to learn from as well...

 

[AZAK]

45-70 in a derringer!

Heck, if you are going to do it, go big... after all you do have two hands and two barrels; after shooting one barrel per hand, you are done! No need of additional rounds, as you don't have a third hand to pull the trigger even if you did.

Discussion of said piece:
http://www.greatlakes4x4.com/showthread.php?t=199993

I kind of ascribe to being able to accurately fire and control any firearm for more than two rounds. Personally have .380 in LCP as my "mouse gun". Any larger cartridge goes in a larger firearm for me.

YMMV

 

[nanewt02]

i want it

 

[BigD_in_FL]

The Rohrbaugh in 9mm is the same size as most 380s - yet it packs a LOT more power - the new Boberg would be even better because it adds another inch to the barrel in the same size package

 

[ohen cepel]

The smaller the pistol the harder they are to hit with, so more practice is needed. Practice, if painful, is not likely to happen often. And yes, you lose power with a shorter barrel since you can't burn the powder up in those lengths in most cases, some new ammo is addressing this.

In the end, I am not a fan of the larger calibers in small pistols. For me, they don't make sense.

 

[orionengnr]

Now there are even guns which could be considered mouse guns dimension-wise while being packed with 9mm, or even .40 S&W and .45 ACP.

I think our definition of mouse guns may differ. By my definition, an LCP is right on the edge of being a "mouse gun". Anything smaller gets in the door, regardless of caliber. Anything larger (even if it is a .25)...no, sorry.
It is not the caliber, it is the size and weight.

...is a 9mm out of a, say, 2.5 inch barrel that much stronger than a .380, taking into consideration that the .380 was originally designed for short barrels while the 9mm must exhaust an enourmous (sic) amount of unburned powder, propelling the bullet only a little more...? At the same time, in any case, the 9mm is going to kick a lot harder...

I think you need to review Newton's Third. In all these years, it has not changed. That is to say, if it kicks a lot harder, that is your answer right there.

 

[simonrichter]

I think you need to review Newton's Third. In all these years, it has not changed. That is to say, if it kicks a lot harder, that is your answer right there.

uuups - indeed, making a point there... Still, the question is whether the additional challenge in terms of handling is worth the few extra ft/lbs (or joules, as I would put it) it doubtlessly brings.

Typically, a .380 out of short barrel (say 2,5 inches)will bring something around 240j (~178 ft/lbs).

In contrast, a 9mm performs at around 550j (~407 ft/lbs) out of full size service gun's barrel (say, a G17). The question is: How significant is the drop of ME with a barrel, say, half the lenght?

Alas, all the data I could find is ft/s and grain, and it is a real pain calculating the ME out of these (so much easier with metric data)

 

[Ozzieman]

In recent years, that seemed to have changed, since there are a lot of real small guns in calibers which were formerly confined to full (or at best compact) size service pistols.
My guess and this is only a guess is “weight”. Since the invention of the reliable plastic gun you can carry 9mm or larger than guns like the PPK and have the same weight.
What do you consider the upper end (size) of a pocket gun is?
To me the smallest usable gun is like the Beretta Bobcat but its 25 is so anemic that I wouldn’t carry one for a personal defense gun and it’s too small for my hands.
Again in MO one of the best guns is the Ruger LC9 or LC380.
I have fired them both and I’m sorry I don’t feel that the 9 has that much more recoil. It has more but it’s controllable as any small auto. There are other good 380’s and smaller but the advantage of the small guns has to be weighed against their disadvantage.
Recoil is in the mind of the beholder, a pocket gun is not a target gun and when you need it for self defense you’re not going to reload it several times. You’re just going to point and shoot and adrenalin will overcome any recoil. And since the distances for confrontations by history are short again recoil and accuracy are not the most important. Practice is what’s most important.
I have owned Walther PPk’s Mauser HSc and several others all in 380. This was back in the 80’s and I carried them. But I gave them all up for carry for a slightly larger gun that was easy to carry and had considerably more energy.
Charger Arms Bull dog in 44 special.
If energy is not enough or if recoil is too much for you, then you have the wrong gun and you need to look somewhere else.

 

[simonrichter]

I never doubted one CAN handle a, say, 5inch long gun in .45 ACP, the question of this thread is: Does it make sense or do the "classic" small pistol calibers do the job with only slightly less power?

Strictly spoken for myself, I have already answered the question, and for my super-small otion I prefer 8 rds of .22lr over 6 rds of anything larger.

 

[hudson69]

I have shot the Kel-Tec PF9 and it was fine, it even has a rail for really tiny light(?). 7 +1 rounds of 9mm JHP and you can find them for around $200-225 usually, well before the anti-gun thing kicked off full speed.

 

[Auto5]

My last mousegun was a PSP licensed copy of a Baby Browning .25. I tried a couple of different .22's but found the .25 to be more reliable. I recently traded it in for a Ruger lcp. The Ruger is a little larger, but is thinner and lighter. The little light guns have a bite to them, even in .32 or .380. The mini 9s can be downright unpleasant. I opted for a Kahr CW9 (over the CM9) for my CCW. I like having the longer grip with any full power cartridge.

 

[bacardisteve]

Recoil is subjective to the shooter. Some people are really botherd by it others not so much. For years I carried a kel tec 9mm loaded with +p+ ammo and I ran a lot of that ammo through the gun over the years and to me recoil really wasn't that bad. I now carry a Bersa 45acp loaded with +p ammo while its no "mouse gun" its pretty small for a 45. If I can ever track down one of the little taurus 41mags and it proves reliable you can bet it will be on my hip.

 

[Buckdown]

I second the choice for the Keltec PF9.Good quality for the price with lifetime warranty to the original Owner.

 

[PointOneSeven]

I think they finally managed to fix cracking frame issues for the most part on tiny plastic and alloy guns. And after the .454 .460 .480 and .500 revolver craze, no recoil is too much apparently .

 

[kcub]

One thing that is dawning on me is how intrinsically inaccurate the 9mm is. And that is what I carry.

When I say that I'm thinking of pocket guns that shoot very accurately chambered in 22, 25, 32, & 380. And then accuracy just goes to pot when you start getting into the pocket nines. Heck, even service size 9s aren't very accurate either save the Sig p210.

 

[artoo]

I go with the Taurus 732, NAA Guardian, and the Beretta Tomcat, all in .32 ACP as my back up pistols or for carry when in severely humid and hot conditions.

Granted, these are not powerhouses. But they do serve well and there is a case for the .32 ACP and the .380 ACP mini pistols.

I have no problem with shooting a mini-9 gun that has a double recoil spring assembly as that takes a lot of bite out of the recoil. So does a polymer frame.

A Taurus 709 is my primary gun right now in the CCW rotation and a .32 ACP pistol is the back up. No, it wasn't an easy gun to get used to, but it is in the "snub revolver" ballpark of small semi-autos.

Beretta makes a nice model 85 and single stack pistols are just easier for me to hide and use. Yes, it's a .380 ACP pistol. I do understand it's limitations so it is not a problem.

Sig made the 225, I own two of those, are just the right size to be able to be a primary pistol.

Since these are all more than "combat accurate" they serve their purposes well.

 

[bonefamily]

One thing that is dawning on me is how intrinsically inaccurate the 9mm is. And that is what I carry.

When I say that I'm thinking of pocket guns that shoot very accurately chambered in 22, 25, 32, & 380. And then accuracy just goes to pot when you start getting into the pocket nines. Heck, even service size 9s aren't very accurate either save the Sig p210.

Yes, but remember that pocket guns are not meant for too far a distant shot. They are meant for up close and personal defense shooting.

 

[arizona98tj]

I have two small pistols that see CCW use, a 9mm Kahr PM9 and a .45ACP Springfield XD-S. Neither exhibit feeding or extraction issues regardless of the time spent on the range. I can shoot them one handed, support hand only, etc. and they don't have issues. Practice is not painful....it's very fun. Maybe I practice too much. Maybe some folks don't practice enough.

While I am more accurate with the XD-S, I attribute that to the fact that the Kahr PM9 is DAO....resulting in a notable difference in the trigger styles. I don't spend as much time on it as I do my other pistols.

A typical target with my 15.9 ounce 9mm.

My mouse gun is the new NAA Sidewinder.22 Mag.