Birchwood Casey Mag Double Spinner Targets. 44 Magnum. The Double Mag targets by Birchwood Casey are popular two-disc spinning targets for the big bore pistol shooters. Use this Birchwood Casey Target for its challenging 3" circle and easier 4 1/4" circle. The Mag Double Spinner Target by Birchwood Casey can be used as an answer for an easier-to-hit target or from long range. This Target comes equipped with circles are 50percent larger. Specifications for Birchwood Casey Double Targets Mag Spinner: Type: Double Spinning Target Target Diameter: 4 1/4-3" Material: Steel Features of Birchwood Casey Mag Spinner Double Targets: Used with Soft nose or .44 magnum bullets 2 disc spinning target Made for Big Bore pistol shooters Easy to hit from long range Package Contents: Birchwood Casey 46244 Double Mag Spinner Targets Birchwood Casey BC-46244 Mag Spinner Targets - Double BC-46244