The Pritchett bullet was specially designed for the Pattern 1853 Enfield Rifle. It's unique smooth-sided pattern was easily recognizable, and it was designed to be patched with a strip of paper (included), then lubricated. Some designs had wood or clay plugs in the base to facilitate expansion.
These .563 caliber, 510 grain bullets are hot cast from pure, soft lead, and sold in packages of 25. Choose your style of base- hollow, clay plug, or wooden plug.