The RCBS Trim Mate Primer Pocket Uniformer – Carbide, model 90383, is designed for Large Pistol primer pockets. This tool is manufactured with carbide cutters and serves to true the primer pocket wall and bottom. The precision-engineered uniformer helps ensure consistent case preparation, which is essential for reliable handloading.
The carbide cutter trues up the depth of the primer pocket to the correct SAAMI depth specification, cleans carbon from fired brass and squares the bottom of the primer pocket for uniform primer seating. Variations in the seating depth of the primer can change how the firing pin strikes the primer producing inconsistent ignition, making pocket uniforming a critical step in the case preparation process.
The cutter is made from high-speed carbide tool steel and is designed to fit with the RCBS Trim Mate Case Prep Center. RCBS has dedicated itself to the craft of handloading ammunition since it was founded in 1943 and is the leading manufacturer of reloading equipment for rifles and pistols. The 90383 represents the brand’s commitment to delivering precision-engineered tools for serious reloaders who demand consistent, reliable ammunition performance.
