a short cb cap is the name of the shell. they are made by cci, they are smaller than a .22lr thrfore thy donnot break the sound berior but they will stil kill a coon if hit in the head. you will find them at our local sporting goods store... here in mn i pay $3.50 for a bow of 100

p.s. if you tell me what kind of gun you have i will tell you how to load them, some guns you have to load them differetly then a .22lr