Scorpion 300 Blackout 147Gr Fmj Rifle Ammo 20Rd 10Bx/Cs A. This Scorpion 300 Blackout Ammo features Full Metal Jacket (FMJ) bullets that deliver powerful stopping power flawless precision and predictability. With daily deals on Ammunition and other top-tier rifle ammo from trusted brands like Scorpion you re sure to find the ideal cartridge for your next outdoor adventure or training session. Stock up today to save big on ammo and other top-tier tactical hunting and outdoor gear at OpticsPlanet. Specifications for Scorpion 300 Blackout 147gr Fmj 20rd 10bx/cs: Manufacturer: Scorpion Caliber: .300 AAC Blackout Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 147 grain Package Contents: Scorpion 300 Blackout 147gr Fmj 20rd 10bx/cs