4052 Starline 458 SOCOM Brass (Large Pistol primer) 1.569 – 1.576 O.A.L. 100 Count
The SOCOM is an awesome cartridge that is basically a long 50AE (O.A.L. of 1.575″) with a rebated .308 style head configuration, necked down to utilize a .458″ diameter projectiles. It has been chambered in some bolt guns but it’s claim to fame is in the AR-15 platform. Dies are available from most major manufacturers.