HSM Ammunition .300AAC Blackout 180 Grain Jacketed Hollow Point Boat-tail HP Centerfire Rifle Ammo 20 Rounds. 300AAC Blackout 180 Grain Jacketed Hollow Point Boat-tail HP Centerfire Rifle Ammunition online at OpticsPlanet. This HSM Ammunition Ammunition features Jacketed Hollow Point (JHP) bullets that deliver strong stopping power perfect precision and consistency. With special offers on Ammunition and other superior rifle ammo from trusted brands like HSM Ammunition you re sure to find the perfect firepower for the hunting grounds or the range. Stock up today to save big on ammo and other top-tier tactical hunting and outdoor gear at OpticsPlanet. Specifications for HSM Ammunition .300AAC Blackout 180 Grain Jacketed Hollow Point Boat-tail HP Centerfire Rifle Ammunition: Manufacturer: HSM Ammunition Caliber: .300 AAC Blackout Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 180 grain Package Type: Box Package Contents: HSM Ammunition .300AAC Blackout 180 Grain Jacketed Hollow Point Boat-tail HP Centerfire Rifle Ammunition HSM Ammunition 300BLK-11-N: .300AAC Blackout 180 Grain Jacketed Hollow Point Boat-tail HP Centerfire Rifle Ammo 20 Rounds