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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.

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9mm IS the caliber. If you mean what is it equivalent to, it is approximately the same as a .38.

caliber 38 is a caliber 38. bullet dia. is .357 caliber deals with the dia. or measurement around the bullet head, not the bullet case.

Close. a .38 caliber is usually closer to .357 caliber.

Long Barreled Pistol

No. <><><> Above is correct- however, ,38 Special CARTRIDGES can be used in a .357 magnum revolver. The .38 Special is actually not .38 caliber, but .357 caliber. .38 caliber bullets, such as used in the .38 S&W catridge, cannot be used.

.38 Special, yes. Other .38 cartridges (such as the .38 Long Colt or .38 Super), no.

38 is the size. This answer is actually correct, but more specifically, .38 special (and many of the other .38 caliber cartridges) are actually .357. The caliber ".38" was chosen to distinguish between .357 magnum and .38 special.

45

No

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.

32 caliber is a little smaller then the 38 caliber

how to breakdown and load 38 caliber iver johnson pistol?

Yes If it is .38 special, this is correct. There are other types of .38 caliber other than .38 special, however.

Yes

No! What's the matter with you?

the are also chambered for the 38 caliber, 9mm caliber and 22 caliber

Roughly 1930s. You may have a caliber .38 S&W, which is NOT a .38 Special.

NO, NO, NO, NO, NO, NO, NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! DO NOT EVEN TRY TO DO THIS!!!!!!!!!!!!!!

38 or 357

38 special.

When people talk of a 38, they mean .38 caliber, or 38/100th of an inch. Likewise, a 45 is .45 caliber or 45/100th of an inch. 45 > 38 so a 45 has a larger diameter. However, there are different lengths for each of those calibers, so a .38 Special is longer than a .45 ACP so in THAT sense, a 38 is larger (longer) than a 45.

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

Well, yes and no. Both the .357 Magnum and the earlier .38 Special catridge both use a bullet that is .357 inches in diameter. The .38 Special in not a TRUE .38 caliber cartridge.

They measure the width of the gun barrel in fractions of an inch. A 38 caliber will be .38 of an inch. The bullet projectile itself is a little less wide.

.38 caliber firearms have been around for a long time- several muzzleloader, and cap & ball revolvers used that caliber (Colt Navy models). The .38 rimfire was created about 1861, and was followed by the .38 Webley, various .38 Colts, S&Ws, etc. The most common .38 cartridge today is the .38 Special (which is actually .357, not .38) It was created by Smith & Wesson in 1899, and is still in production.