RCBS 9329 Case Neck Brush Large .35-.45 Cal Nylon

The RCBS 9329 Case Neck Brush is the large-size variant of RCBS's case-neck cleaning brush, designed to fit .35 through .45 caliber bottleneck and straight-walled cases. The nylon bristle head is sized to match the inside diameter of common .35 Cal, .40 Cal, and .45 Cal brass, while the silver-finished shank is built to be chucked into a standard rotary tool or drill so the spinning bristles scour the inside of the case neck.

Used as part of routine case prep, the brush scrubs out residual case lube, carbon, and powder fouling that collect inside the neck during previous firings and lubrication. A clean neck promotes consistent bullet grip, uniform neck tension, and more accurate seating depth from round to round. The nylon bristles are aggressive enough to remove buildup yet gentle on the brass, making this a long-wearing workshop staple for any handloader sizing cases in the .35-.45 Cal range. Sold as a single brush.