The RUM long action 3.850" magazine is built from steel, heat-treated, and then coated with a special teflon for a better finish. This magazine is specifically built for the high shoulder Ultra-Mag case. It is compatible with most UM and EDGE cartridges and has worked great for the popular 300 PRC.
Max internal length: 3.750”
*WEIGHT: 5 Round: 7.3 ounces - 3 Round: 5 ounces