With few exceptions, no. Even with those exceptions, the cartridges are actually the same caliber, or a barrel change is required.
.357 Magnum revolvers can fire .38 Special cartridges, and .44 Magnum revolvers can fire .44 Special cartridges. This applies only to revolvers, and should never be done with semi automatics, lever action rifles, or any other type of firearm which has a headspaced chamber.
.40 S&W semi auto handguns can fire the .357 Sig (not the .357 Magnum) cartridge with a barrel change for the appropriate caliber.
.22 Long rifle firearms can fire .22 Long and .22 Short cartridges. The .22 LR, Long, and Short cartridges do not generate sufficient chamber to pose a threat to the firer, even with a headspaced chamber. However, it can only be used as a repeating firearm with a tubular magazine - a .22 Long Rifle box magazine cannot accommodate the shorter Long and Short cartridges. Other .22 calibers, such as the .22-250 or .22 Winchester Magnum Rimfire, are not compatible.
Firearms chambered in 5.56x45 or .223 Remington can sometimes fire the .22 Long Rifle cartridge with modification. Typically (as is often seen in AR-15 pattern rifles) the bolt carrier assembly will be replaced by a .22 Long Rifle firing assembly. Such kits are available for AR-15 pattern rifles and the Ruger Mini 14.
380 and 9mm use the same size projectile. 40 is bigger than both.
No, you cannot use .223 and 7.62x39 cartridges in the same gun, as they are different calibers with different case dimensions and specifications. Each caliber requires a specific firearm designed to handle its unique cartridge. While some firearms are designed to be multi-caliber, they must be explicitly made for that purpose, typically involving interchangeable barrels or components. Always ensure you are using the correct ammunition for your specific firearm.
They're all designed for the same purpose - to kill something. Although smaller is not necessarily less lethal, smaller calibers generally will be designed for short-range use on small animals and large calibers may be suitable for hunting bear.
no, because they believe that same gun powder can use in different types of guns and that will also cheap
yes, most modern calibers can make it through traditionally made chain mail. That's why we use kevlar.
Around 50 different calibers, anything from a .17 Rem to a 458 Winchester mag.
They are made in several different calibers. Look on the barrel to read caliber markings.
Uzi's are chambered in four different calibers. They are 9x19 parabellum(9mm), .45ACP, .41AE and .22LR.
Two different calibers, two different slides, do not mix and match.
Different guns for different purposes.
I believe you mean calibers. The main calibers in use with the Canadian Forces are the 5.56x45mm NATO and 7.62x51mm NATO. Other calibers include .50 BMG and 9mm, although they are not as common.
No, just use same ammunition