Shop › S&B 300BLK 147GR FMJ 20/1000 S&B 300BLK 147GR FMJ 20/1000 $21.95 Sellier & Bellot Rifle, 300 Blackout, 147 Grain, Full Metal Jacket, 20 Round Box SB300BLKB Quantity: Add To Cart Added! Sellier & Bellot Rifle, 300 Blackout, 147 Grain, Full Metal Jacket, 20 Round Box SB300BLKB