Star Gauged Barrels

Star Gauged Barrels - Barrels made for US Springfield Model 1903 rifles by Springfield Armory and Rock Island Arsenal, measured internally for precision of boring and rifling, by hand, throughout their full length with a special feeler gauge and subsequently marked at the bottom of the muzzle with a circular six-pointed star. Used first on National Match rifles, this star is reputed to be the sign of a particularly accurate barrel---although noted authorities William Brophy and E C Crossman had their doubts.


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