The GAMO Viper Express Pellets, 22PEL, Shot Shells, 25 Pack (632300054) delivers a payload of #9 lead shot with enough power and velocity to penetrate over 1/8" of 200 lbs compressed paper board at over 10 yards. Package contains a total of 25 shot shells. This ammunition is to be used with the Viper Express or Shadow Express airgun. Each pellet type is tested through actual firing of random lot samplings. If a lot groups outside of 7/8" of an inch at 10 or 25 meters the entire lot is discarded.