Patent ID: 8621772

Claim:
In a revolver having a frame, carrying a barrel and a revolving cylinder having multiple cartridge chambers therearound, each configured to hold and sequentially and longitudinally align a cartridge therein carrying a bullet with a rear portion of the barrel, the improvement comprising: a) a sliding sleeve positioned over an inner end portion of the barrel, said end portion of the barrel and inner diameter of the sliding sleeve closely mated; and, b) said sliding sleeve having a front face having a central opening therethrough having an inner diameter nominally equivalent to marginally larger than, a bore through the barrel; whereafter firing, the sliding sleeve is instantaneously, and directly driven back, substantially by gas pressure, until the front face of the sliding sleeve makes contact with the revolving cylinder, thereby eliminating any gap between the revolving cylinder and the barrel, preventing exploding gas from escaping therethrough, and substantially increasing bullet discharge velocity and energy, and subsequently, after the bullet is fully discharged, and gas pressure drops, said sleeve is no longer forcibly maintained in a gap eliminating position.