What is cal .25?

Cal .25 usually refers to a firearm cartridge, specifically a handgun cartridge. The most common type of cal .25 cartridge is the .25 ACP (Automatic Colt Pistol), also known as 6.35mm Browning. It was designed by John Browning in 1905 and was originally used in small pocket pistols.

The .25 ACP cartridge typically uses a 50-grain bullet and has a muzzle velocity of around 760 feet per second. It is generally considered a low-powered cartridge and is primarily used for self-defense or as a backup gun.

While some people argue that the .25 ACP is not an effective self-defense cartridge due to its low stopping power, others argue that it can still be effective if used properly and can be easier to carry and conceal than larger handguns. Regardless, it is important to note that any firearm should be used responsibly and with careful consideration for safety.