Abstract: The cartridge ejector has a spring loaded ejector slide supported by the barrel pivot block for siding motion from a seated position to an eject position. The slide has a finger configured to engage the cartridge casing rim when the casing is seated at the breech end and the slide is at the seated position. Opposite the finger is a catch captured by a sear. In response to opening the breech the slide snaps to the eject position to eject and throw the cartridge casing from the breech.