RCBS Matchmaster Multi-Cartridge Aluminum Reloading Block - Upgrade your bench, and your efficiency, with the MatchMaster Multi-Cartridge Reloading Block from RCBS. Holding two case sizes/diameters in a single block, this one tray does the job of two, streamlining your workflow without sacrificing capacity. Each block holds .223 Remington and .308 Winchester cartridge families, plus any other cartridge with a .384 or .470 bolt face diameter. Precision-machined from solid 6061-T6 high quality billet aluminum and proudly Made in the USA. It's stackable, ultra cleanable, with pass-through powder holes and built to last a lifetime. With room for 50 cartridges and generous spacing for easy handling, your bench just got twice as efficient. Made in the USA ; Made from 6061-T6 Aluminum; No-Slip Feet: Keeps the tray stable during loading or case processing; Stackable : Organize & declutter your bench; DuelFitTM Design : Holds two case sizes in a single tray; PrecisioneeredTM Case Holes : Allows powder to fall through for easy clean up; .384 or .470 bolt faces, cartridges like .223 REM, 5.56 NATO, 6MM ARC, .243 WIN., 6.5MM CRD., 7MM-08 REM, .300 AAC BLK., .30-06 SPG, .308 WIN. and more;