Product Description The RCBS AR Series Small Base Taper Crimp Die Set is precision-engineered for reloaders using AR-platform and semi-automatic rifles chambered in .300 AAC Blackout. This two-die set includes a Small Base Sizer Die and a Taper Crimp Seating Die, working together to guarantee reliable rechambering and consistent bullet retention under recoil. The unique 7-degree taper crimp angle is specifically designed for autoloading rifles, making this set an essential tool for any AR-platform reloader. All RCBS dies are machined to exacting tolerances, hardened, and finished to the highest industry standards for lasting performance. Product Highlights Small Base Sizer Die ensures every loaded cartridge will rechamber reliably in AR-platform and semi-automatic firearms Taper Crimp Seating Die features a unique 7-degree crimp angle engineered specifically for autoloading rifles, locking bullets securely against recoil movement Taper Crimp technology is more forgiving across varying case lengths, virtually eliminating case neck crimp bulges and buckled shoulders Comes packaged in a distinctive black die box for convenient and organized storage Machined to exacting tolerances and hardened to the highest industry standards for superior, long-lasting precision Specs Brand: RCBS Series: AR Series Caliber: .300 AAC Blackout Die Type: Small Base Taper Crimp Die Set Number of Dies: 2 Crimp Angle: 7-Degree Taper Crimp Die Box Color: Black Manufacturer Part Number: RCB22407 UPC: 076683224071 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.