Invaluable when buying a used gun, the BoreMaster multi-bore gauge can accurately measure all the inside dimensions of a gun for peace of mind when the money swaps hands and, most importantly, when shooting.
It measures bore size from .410 to four-gauge, and rifle barrels of .405 calibre and larger, fixed and screw in chokes, and chamber dimensions. Barrel wall thickness measuring is also available additionally.
Spring-loaded probes exert equal pressure on the bore for consistently precise measurements, readings are accurate to 0.001in and can be displayed on the LCD screen in inches or millimetres.
Robert Louis Co www.robertlouisco.com