RCBS 09578 Primer Pocket Brush Small Multi-Caliber Stainless Steel Bristles

The RCBS 09578 Primer Pocket Brush is a dedicated reloading tool designed to scrub residual fouling, carbon, and debris from spent primer pockets before resizing or repriming. Sized for small primer pockets and rated for multi-caliber use, it features an interchangeable mount so it can be paired with RCBS handles and other standard reloading handles on the bench.

The brush head is fitted with stiff stainless steel bristles in a silver finish that cut through built-up residue without galling the case wall and resist corrosion from cleaning solvents and humidity on the bench. Used as part of the standard case-prep routine between firing and repriming, the 09578 helps ensure new primers seat flush and uniform for reliable ignition and consistent reloads. Sold as a single brush, RCBS MPN 09578.