All of our cartridges are assembled in SW Florida, USA!!!  The brass is processed from one of the BEST Brass Processors in the USA!!  Our remanufactured .223 Remington cartridges contains 55gr full metal jacketed projectiles also manufactured in the USA!! You won't be disappointed in the quality of 1st Round Ammunition for the price you pay! SPECS: Cartridge: .223 Remington Projo. Grain: 55gr FMJ FPS: Approx. 2950 FPS (Mixed Headstamps of 5.56x45mm and .223 Remington.  All casings are trimmed and spec to .223 Remington for use in all rifle platforms)