Keith
Member
Apples and Oranges.
If you want to compare a .380 against a 9mm in a 4" barrel, the 9mm is going to win hands-down. That's a full sized gun and there would be no reason to chamber a gun that size in .380 - or perhaps it only makes sense to Europeans...
If you want to compare them in a true pocket pistol like a Colt Mustang (2.75" barrel), it begins to get a bit stickier.
I don't know of any 9mm with that short a barrel, but there are some just a tad longer. I don't think there is any great velocity advantage in 9mm from such a short barrel. I also think the increased muzzle flash, noise and recoil from such a small gun in 9mm would be enough to tilt you to a .380. Shoot such a gun at night and you're going to blind and half deaf after the first shot.
To further muddy the waters, there is high velocity .380 ammo designed for short barreled guns. There is nothing like that for 9mm which is designed to optimimum advantage in a longer barrel.
I've made the same argument against .357's in snubbies. It may be just fine at the range on a sunny day, but shoot that in the dark in an enclosed space and that fireball and noise is going to work against you. I think any premium .38 Special ammo would be a better choice in a snubbie. Shot placement means nothing if you can't see what you're shooting at.
I don't know any extensive source of ballistics data for short barreled auto's, but from what I've garnered there seems to be about a 100 fps advantage to the 9mm (vs .380) in barrels of 3" or so. That is with STANDARD ammo, not Cor-Bon or some other good .380 ammo optimized for high velocity. I don't think that's such a great trade-off.
If your goal is the ultimate in concealment, get a .380 or a 38 snubbie. If you want ballistics, get a 9mm (or .40, .45) in a larger gun.
The choice is yours, to be decided by your lifestyle, wardrobe, personal preferences, etc. I just think the ballistics argument begins to get a bit hollow when the barrels get that short.
Keith
If you want to compare a .380 against a 9mm in a 4" barrel, the 9mm is going to win hands-down. That's a full sized gun and there would be no reason to chamber a gun that size in .380 - or perhaps it only makes sense to Europeans...
If you want to compare them in a true pocket pistol like a Colt Mustang (2.75" barrel), it begins to get a bit stickier.
I don't know of any 9mm with that short a barrel, but there are some just a tad longer. I don't think there is any great velocity advantage in 9mm from such a short barrel. I also think the increased muzzle flash, noise and recoil from such a small gun in 9mm would be enough to tilt you to a .380. Shoot such a gun at night and you're going to blind and half deaf after the first shot.
To further muddy the waters, there is high velocity .380 ammo designed for short barreled guns. There is nothing like that for 9mm which is designed to optimimum advantage in a longer barrel.
I've made the same argument against .357's in snubbies. It may be just fine at the range on a sunny day, but shoot that in the dark in an enclosed space and that fireball and noise is going to work against you. I think any premium .38 Special ammo would be a better choice in a snubbie. Shot placement means nothing if you can't see what you're shooting at.
I don't know any extensive source of ballistics data for short barreled auto's, but from what I've garnered there seems to be about a 100 fps advantage to the 9mm (vs .380) in barrels of 3" or so. That is with STANDARD ammo, not Cor-Bon or some other good .380 ammo optimized for high velocity. I don't think that's such a great trade-off.
If your goal is the ultimate in concealment, get a .380 or a 38 snubbie. If you want ballistics, get a 9mm (or .40, .45) in a larger gun.
The choice is yours, to be decided by your lifestyle, wardrobe, personal preferences, etc. I just think the ballistics argument begins to get a bit hollow when the barrels get that short.
Keith