F Underwood Ammo .458 SOCOM 500 Grain Coated Hard Cast Brass Cased Rifle Ammo, 20 Rounds, 756 $73.49 756 show more like this Free Shipping on most orders over $49 Optics Planet F Underwood Ammunition 458 Socom Ammo 500 Grain Flat Nose Lead Free Box of 20 $76.99 - show more like this 12.75 MidwayUSA