Engineered for fast-twist 7mm cartridges this is the heaviest tipped copper bullet designed to reliably stabilize in a 1:8" twist while remaining exceptionally forgiving. Weight and accuracy were the priority on this bullet design. The front TSX groove is optimized for the 7mm PRC yet the .721" nose length allows for broad compatibility—making it loadable in most 7mm cartridges as long as they have a 1:8" twist rate or faster.