The Pro-Shot Shotgun Bore mop is made with 100% cotton and a brass core. They are made of the highest quality construction possible. Mops can be used for quick cleaning and bore lubrication. Mops are especially excellent when using oil for bore lubrication because they create foaming action that helps in the lubrication process.

Threads    5/16"-27
Caliber Group    410 Bore
Core Material    Brass
Mop Material    Cotton