Product Description The Area 419 Zero M-Series Magnum Shellholder (419-ZERODIE-SHMAG) is engineered specifically for cartridges utilizing standard magnum case head dimensions, including 6.5 PRC, 7mm Remington Magnum, and .300 Win Mag. Designed to pair seamlessly with Zero M-Series sizing dies, this shellholder provides secure case retention and precise alignment throughout the press stroke. Its stud-and-groove design clicks effortlessly into the ram of traditional reloading presses such as the Rock Chucker and T-7, ensuring consistent contact during every cycle. Built for magnum cartridge reloaders who demand reliable performance, this shellholder supports uniform sizing and precise shoulder control for consistent, repeatable results. Product Highlights Magnum Case Head Compatibility: Engineered for standard magnum case head dimensions, supporting cartridges such as 6.5 PRC, 7mm Remington Magnum, and .300 Win Mag. Stud-and-Groove Design: Clicks securely and effortlessly into the ram of traditional presses like the Rock Chucker and T-7 for reliable, repeatable operation. Precision Alignment: Delivers precise case alignment and secure retention when used with Zero M-Series sizing dies. Consistent Sizing Performance: Maintains uniform contact during the press stroke for accurate shoulder control and consistent case sizing. Straightforward Selection: Designed for ease of use -- simply choose the correct press and shellholder size needed for full compatibility. Specs Brand: Area 419 MPN: 419-ZERODIE-SHMAG UPC: 810080182325 Model: Zero M-Series Series: Shellholder Caliber: Magnum (6.5 PRC / 7mm Remington Magnum / .300 Win Mag) Weight: 0.30 lbs Dimensions: 6" x 4" x 1" 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. ]]>