Bore Tech’s Benchmark Phosphor Bronze Bore Brushes are known as being the finest in the industry and set the standard for all other phosphor bronze brushes. This is due to the superior construction and engineered features incorporated into each and every brush.Our premium Benchmark Bronze Brushes have twice the amount of phosphorous bronze bristles and each caliber has specifically tailored bristle diameters resulting in double the scrubbing action and faster cleaning.Each 100% barrel safe, double wound bore brush core has a looped end eliminat