Sig Sauer Elite Performance Ball, 40 S&W, 180 Grain, Full Metal Jacket, 50 Round Box E40SB2-50 SIG FMJ delivers round after round of affordable, premium-level performance. Featuring dependable primers and the same exceptional, clean-burning propellants used in breakthrough SIG V-Crown defense rounds, SIG FMJ durable copper-jacketed bullets remain intact on impact with equivalent point-of-impact, recoil and energy. Practice or competition, SIG FMJ measures up.