FN DFNS is the first 5.7x28mm ammunition perfected for personal protection. The unique 30-grain jacketed hollow point bullet contains a copper-tin powdered core designed to expend energy quickly and efficiently. Protect what matters most with the FN DFNS tested and perfected for optimum performance in 5.7x28-chambered firearms. - FN 5.7x28mm ammunition is available in SS200 DFNS personal defense round SS201 GUNR training and plinking round as well as SS195LF lead-free and SS197SR sporting rounds. - PRIMARY FEATURES - High performance 5.7x28mm personal defense cartridge designed for accuracy and consistent expansion - Meets FBI test protocol; independently tested - 30-grain jacketed hollow point boxer primer brass case - Unique bullet design consisting of frangible copper-tin metal core with a copper jacket - Cycles reliably across 5.7x28mm firearms - CALIBER 5.7x28mm - BULLET WEIGHT 30 Grain - CASE TYPE Brass - BULLET STYLE JACKETED HOLLOW POINT