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Nothing, reallyThe main difference is that the term ".38 caliber" usually refers to revolvers while ".380 ACP" refers to automatic handguns.

The two cartridges have different lengths, diameters, rims, and bulet weights. They do NOT interchange.

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What is difference between 380 caliber and 38 caliber?

One would think that .380 ACP and .38 Special would be the same size--namely 38-hundredths of an inch. But there can be some flexibility in stated caliber and actual caliber. Long story short, .380 ACP is the same diameter as a 9mm, roughly .355 caliber. .38 Special is basically .357 caliber.


What is the difference between a 380 and a 38?

Bullet diameter on a 38 is .357; on a 380 it is .355 Case is longer on a 38.


What is the difference between a 380 caliber bullet and a 038 caliber bullet?

The 380 ACP, also known as the 9mm Short, 9x17, 9mm Browning, 9mm Kurz and 9mm Corto uses a .355 diameter bullet. The 38 special uses a .357 diameter bullet. Additionally, the 380 ACP is designed for a semi-automatic and the .38 special is designed for a revolver.


Difference between 32 and 38 colt police positive?

32 caliber is a little smaller then the 38 caliber


A 380 is what caliber?

Well, it's a .38 caliber, but the actual measurement is .355 of an inch.


Can a 380 caliber handgun and a 38 caliber handgun be the same or have same ammo type?

No, i asume you dont have see .380 pistol and a revolver 38 spl, the .380 and 38 spl ammo share de same diameter boot no the longer, the 38 is for a 38 special revolver tipe and the .380 is for an automatic pistol tipe some people call 9mm short.


Are 380 caliber and 38 caliber the same?

You'd think they would be--right? Depending on the tolerances of a particular weapon, you might be able to use SIMILAR projectiles. A .380 caliber is actually has a .355 caliber projectile--so does a 9mm. The typical .38, as in 38 Special is .357 caliber. So, when all is said and done, .355 caliber is smaller than .357 caliber. No, they are not the same, but close.


What does .38 caliber mean?

Caliber is the diameter of the bore of a firearm. It's expressed in hundredths or thousandths of an inch, as in .45 caliber or .380 caliber. Curiously, the actual diameter of a .38 caliber slug is 0.357 inch.


Is there a difference between a 38 special caliber bullet and a .380 caliber bullet?

Yes. .38 special is a revolver cartridge and .380 is an auto cartridge. Also, the .38 will almost always have a heavier bullet and more muzzle energy than a .380. The .38 bullet is 0.357 inches in diameter while the .380 is 0.355 inches in diameter. Technically, the .380 cartridge is considered part of the 9 mm class of bullets. [9 mm x 19 mm = 9 mm Luger or 9 mm Parabellum, 9 mm x 18 mm = 9 mm Tokarov, and 9 mm x 17 mm = .380 ACP]


Is a 38 and a 380 the same caliber?

Not really. The .38 usually refers to a rimmed revolver cartridge, such as .38 S&W, or .38 Special. The.380 is an automatic pistol cartridge, and much shorter.


What is the difference from 38 cal to 380 cal?

the 380 is a 9mm short


Is there a difference between a 38 caliber bullet and a 380 caliber bullet?

Yes they is a differnent. When people say "38" they usually mean .38 special, which is a revolver cartridge. .380 ACP is a semi-automatic cartridge. The bullet in a .380 cartridge, even though it's called .380, is actually very slightly smaller in diameter, and lighter than the bullet in a .38 cartridge. The .38 bullet is 0.357 inches in diameter while the .380 is 0.350 inches in diameter. Technically, the .380 cartridge is considered part of the 9 mm class of bullets. [9 mm x 19 mm = 9 mm Luger or 9 mm Parabellum, 9 mm x 18 mm = 9 mm Tokarov, and 9 mm x 17 mm = .380 ACP]