Honing System Eliminates a Gun Barrel Lapping Operation Pac-Nor Barreling Inc.'s manual lapping of gun barrels was tedious and time-consuming. Sunnen's HTE honing machine eliminated manual pre-lapping ...

Fred Feddersen shows off a part presence sensing system he devised for his new gun drilling system. A series of targets with a pair of Ruger .22 magnum semiautomatic rifles equipped with Feddersen ...