The Remington Premier Expander cartridge features fully copper Barnes Expander point slugs. Precision-designed, the Barnes Expander slug has six cutting petals that unfold upon impact, causing massive terminal damage and direct penetration for instant game downing. Loaded to the industry's highest standards with top-quality components, it provides hunters with utmost confidence in both accuracy and terminal performance. Moreover, the all-new Remington Premier Expander cartridge line displays its ballistic characteristics clearly on its packaging.