Patent ID: 7451756

Claim:
A method of applying spin on a paintball fired from a paintball gun, the method comprising the steps of: using a firing mechanism that is part of the paintball gun to accelerate the paintball through a bore of the paintball gun such that the paintball travels along a path extending from the firing mechanism, wherein the bore has a muzzle end, wherein only a single section of the path changes angle and wherein the bore does not have a rifled surface or additional frictional material; causing a portion of the paintball to contact a first surface at the single section where the path changes angle without rupturing prior to exiting the paintball gun such that friction between the first surface and the paintball imparts a backspin on the paintball which persists after the paintball exits the paintball gun, and the first surface is longitudinally-extending along the path of travel of the paintball and is curved transverse to the path of travel of the paintball; and expelling the paintball from the paintball gun to cause the paintball to contact a second surface and rupture, spilling its contents on the second surface.