300 Blackout - Subsonic, 190 Grains, Sub-X Subsonic Flex Tip eXpanding, Per 20 - RTP Armor

Ammo 300 Blackout 190gr Sub-X/20

Vendor: Hornady


Regular price $29.93 $29.93

Hornady 300 Blackout Subsonic Ammunition is designed for accuracy and performance below the speed of sound. The 190 gr Sub-X (Subsonic - eXpanding) bullet features a lead core. Long grooves in its gilding metal jacket combine with the bullet’s flat profile and the patented Flex Tip insert within its hollowpoint cavity to help it expand reliably at low velocities.

Performance of the Hornady Subsonic 300 Blackout load meets or exceeds FBI Protocol terminal ballistic test requirements.


- Sub-X Bullet Technology: In addition to its patented Flex Tip, long grooves in the gilding metal jacket of the 190 gr Sub-X combine with the bullet’s flat profile to ensure expansion. The Sub-X features a lead core and a cannelure for a positive case crimp for use in semi-automatics.
- Proven Performance: Performance of 300 Blackout Subsonic meets or exceeds FBI Protocol terminal ballistic test requirements. Impact velocity of 1,020 fps into ballistic gelatin provides 16-18” penetration and 90%+ weight retention.
- Silent and Stealthy: Hornady Subsonic Ammunition doesn’t have the loud report of a supersonic round, and paired with a suppressor, it’s even quieter. Unique powders optimized for subsonic use result in a low flash signature, ideal for either suppressed or unsuppressed performance.


Cartridge: 300 Blackout
Bullet: 190 gr Sub-X
Sectional Density: .286
Ballistic Coefficient: .437(G1)
Application: Medium Game 50-300 lbs.
Personal Defense
Box Count: 20