Dillon Precision Rapid Polish 290 is the essential case polish additive for reloaders who demand cleaner, brighter brass without adding unnecessary steps to their process. Formulated specifically for use in vibratory tumblers, this 8 oz bottle is designed to work with both crushed walnut shell and ground corn cob media—especially Dillon Precision's own case cleaning media. Rapid Polish 290 helps break down stubborn fouling, powder residue, and abrasive surface grime that dry media alone may leave behind. The result is a brighter, polished finish that's not just cosmetic—it means cleaner, smoother brass that's ready for your reloading press without any rinsing, drying, or extra prep. Each use requires only a few capfuls poured directly onto your media. Once mixed, it remains active in the media for multiple cleaning cycles, delivering excellent value and reducing waste. Unlike other polish additives that can compromise the structural integrity of brass, Rapid Polish 290 is engineered to preserve case strength, even through repeated reloads. Clean brass isn't just about looks—it helps keep your reloading equipment running efficiently. Cleaner cases reduce buildup in dies and other components, helping extend the life of your machine while maintaining consistent reload quality. Directions for Use: Shake well before using. Add 3–4 capfuls of Rapid Polish 290 directly into your media inside the tumbler. Run the tumbler for 1–2 hours or until your brass reaches the desired finish. No rinsing or washing required. For best results, use with Dillon Precision Walnut or Corn Cob Case Cleaning Media in the CV-750 or CV-2001 Vibratory Case Cleaner. Trusted by reloaders for over 50 years, Dillon Precision delivers the tools and accessories serious reloaders rely on for performance, consistency, and quality. Rapid Polish 290 is a simple upgrade that helps your brass look better and reload smoother—every time.