VFG
Weaponcare Cleaning Pellets 5mm

You can keep all rifled and smooth barrels in perfect condition with the VFG quick cleaning pellets.

How VFG quick cleaning pellets work:
When the weapon is fired, an overpressure occurs that causes the pellet to shrink in length but expand sideways. As a result, it is pressed against the sides of the barrel (and also into the rifling grooves), wiping it and polishing it thoroughly.

For Air Rifles and Air Pistols:
It's simple and quick. You just shoot the pellets. Make sure the pellets are stopped safely into the stop butt or pellet catcher.