HSM Subsonic Blackout BTHP 300gr 20rd Box

The HSM Subsonic Blackout load features a heavy 300-grain jacketed hollow point bullet offered for Blackout-platform use. It ships 20 cartridges per box with 25 boxes per case and is marked as reloadable. Published ballistic values list a muzzle velocity of 960 fps and muzzle energy of 735 ft-lbs.

Key Specifications

• The bullet type is JACKETED HOLLOW POINT.
• The bullet weight is 300 grains.
• Each box contains 20 cartridges.
• There are 25 boxes per case.
• The cartridges are marked as Reloadable.
• The listed muzzle velocity is 960 fps.
• The listed muzzle energy is 735 ft-lbs.
• The product is marketed as Subsonic.

This load provides a heavy-for-platform bullet profile combined with subsonic velocities for applications where reduced report and controlled flight characteristics are desired. The jacketed hollow point design and reloadable brass make it a practical choice for shooters who prioritize consistent, heavy-for-caliber projectiles in Blackout-style platforms.