Specifically designed for Straight-Wall cartridges including 350 Legend, 360 Buckhammer, 400 Legend, 450 Bushmaster and 45-70 Gov&';t. Hawke has carried out the complicated ballistic math, so you don&';t have to! Features: Capped Low-Profile Turrets Designed for Straight-Wall cartridges 1 Inch Mono-tube chassis Illumination 11 layer Fully Multi-Coated lenses High torque zoom ring Fast focus eyebell