F Sellier & Bellot SB300BLKXA eXergy 300 Blackout 110 gr TAC EX Blue 20 Per Box/ 50 Case 500 Rounds $499.99 SB300BLKXA - $12- $18 Per Item BH Ammo F Sellier & Bellot SB300BLKXA eXergy 300 Blackout 110 gr TAC EX Blue 20 Per Box/ 50 Case 1000 Rounds $994.99 SB300BLKXA - $12- $18 Per Item BH Ammo