The earliest guns were loaded from the muzzle.

RPGs, with the exception of self-contained versions, are loaded from the muzzle.

Like numerous cannon before it, it was a cast iron smoothbore loaded from the muzzle.

The original firearms were loaded from the muzzle by forcing a ball from the muzzle to the chamber.

Soviet/Russian launchers are instead loaded from the muzzle, with the cartridge casing affixed to the projectile in the style of a mortar shell.

The finned mortar "bomb" was loaded from the muzzle, but the propellant was loaded from the breech and ignited by a percussion ignition system.

A muzzleloader is any firearm into which the projectile and usually the propellant charge is loaded from the muzzle of the gun (i.e., from the forward, open end of the gun's barrel).