It should be marked on the barrel.
Negative, 308 is a 30 caliber bullet and 30 doesn't fit into 25.
a .32 acp caliber pistol round is also called a 7.65mm in the metric designation. But that doesn't fit the real-world measurements, because a .32 pistol bullet is really more like .30 or .31 caliber, and 7.8mm in metric measurements. The diameters of a 7.63 bullet and a .32 caliber bullet are similar, but that doesn't mean they're the same "caliber" or that they will fit the same guns. The 7.62 mm family of rifles are often called ".30 caliber" and they really are close to that, with the bullets either .308 or .311 diameter.
If you mean a .40 caliber bullet in a .32 caliber gun- no. The bullet would be 8 thousandths of inch too large to fit in the gun. Caliber refers to the diameter of the bullet, so a .40 caliber bullet is ABOUT .40 inches across, and a .32 bullet ABOUT .32 inches across.
No. The bullet is too big. A 30-30 is a .30 caliber bullet. a .38 bullet is .357 caliber
No, it won't fit. The .45 caliber bullet is 0.45" in diameter; the .30 caliber bullet is .15" smaller. The brass is different size too.
A 410 shotgun is basically a 41 caliber smoothbore. A 45 caliber round may fit in the chamber, but the bullet is too big. Don't do it.
Caliber is used to relate the diameter of a projectile (bullet). Its possible for two projectiles to have the same diameter, but vastly different weights/masses. One bullet might be 3 times as long as the other, although both have the same diameter. Caliber is typically measured as hundredths of an inch. So a 38 Caliber implies a projectile with a diameter of 38/100th of an inch, or .38 Cal. Notice the leading decimal point in most caliber designations. .45ACP is 45/100th of an inch. ACP is a special, patented shape of round designed by the Colt company for its automatic pistols. ACP = Automatic Colt Pistol.
There have been several that fit that description.
Bullet size is typically measured by its diameter in inches or millimeters. This measurement is taken at the widest point of the bullet, known as the caliber. It is important to accurately measure bullet size to ensure proper fit and function in firearms.
Small Pistol Primers are used for small caliber pistols, any of the various 9mm calibers such as the .380, the 9mm luger, the 9x18 makarov, the .38 special, the .32 acp, the .25acp etc. and even some larger calibers such as the .40 S&W. Large caliber pistol primers are used in .45 caliber and larger. Still other calibers, such as the .357 Magnum for instance, require primers known as magnum primers.
No. An antique bullet is 100 years old. That is the meaning of "antique". But they can make modern bullets to fit and antique pistol.
No. the AK-47 assault rifle is chambered for the 7.62x39mm round, which is equal to the .30 caliber. The .45 caliber is simply too large for the AK-47's bore, not to mention it is a pistol cartridge, which has a completely different design than a rifle cartridge.