Blue 37mm Limited edition Casing 3.5" w/ Milled Bushing holsters We recommend using the #4

We recommend using the #4 yellow or #5 Red 22LR Blank for this projectile

This kit also includes 2 - 3" Aluminum Reusable Casings

This Dual shell Holder works with all of our 37mm reloading supplies

12 Ready Load projectiles

Blue 37mm Limited edition Casing 3.5" w/ Milled Bushing holsters We recommend using the #4New unfired limited edition Blue anodized 37mm aluminum hull. For use with black powder loads and black powder substitute. Do not use smokeless powder in the 37mm aluminum casing. Uses a #209 shotgun primer. These are 3. 5" long with a milled in powder bushing. Price is per individual casing. Weight: 0. 16 lb