Rifles shotguns and handguns differ mostly based on their what

Answer: Rifles, shotguns, and handguns differ mostly based on their calculated targets, ammunition types, and barrels.

First, both rifles and shotguns have long barrels while handguns only have short barrels.

Next, shotguns are commonly used for targets that are in motion while both handguns and rifles are commonly used for fixed targets.

Lastly, when it comes to ammunition types, rifles and handguns use just one particular caliber while shotguns use just one particular gauge.