METHOD FOR ENHANCEMENT OF ACCURACY OF FIRE OF TANK GUN AN TANK GUN Russian patent published in 2006 - IPC F41A21/00 F41A25/00 

FIELD: armament.

SUBSTANCE: the accuracy of barrel positioning is enhanced by placement of it in the guides with an increased supporting base. At a shot during motion of the shell in the barrel the resistance to the recoil is minimized, thus providing the symmetry of the recoil resistance forces relative to the longitudinal axis of the barrel. After the shell leaves the bore the recoil resistance is enhanced. The accuracy of positioning is restored during counterrecoil. The inner walls of the bore are coated by a wear-resistant heat-resistant layer, and the barrel is covered by a heat-shielding cover. The gun is provided with a neck fastened on the front part of the cradle. The front guide support is positioned in the cradle neck and made of the main and auxiliary rings. The diameter of the main supporting ring positioned closer to the muzzle end is less than the diameter of the auxiliary supporting ring. Cylindrical bearing and conical surfaces are made on the barrel. The cylindrical bearing surface is positioned for engagement with the main supporting ring, and its working length before the main supporting ring, and its working length before the main supporting ring corresponds to recoil length L of the barrel before the shell leaves the bore.

EFFECT: enhanced accuracy of fire.

4 cl, 4 dwg