Prophet River Firearms

Please note that due to shipping restrictions all ammunition, primers and gun powders are not available for online purchase. Please contact our store and we would be happy to provide you with a quote and process your order manually for any of these items.

Hornady 300 Blackout Subsonic Ammunition is designed for accuracy and performance below the speed of sound. The 190 grain 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 hollow-point cavity to help it expand reliably at low velocities. Performance of the 300 Blackout Subsonic load meets or exceeds FBI Protocol terminal ballistic test requirements. 

Other features:

• Impact velocities of 960 to 1,020 fps into ballistic gelatin, providing 16-18” penetration and 90%+ weight retention.

• Designed to expand at velocities down to 900 fps.

• Loaded with unique powders optimized for subsonic use, the low flash signature is ideal for both suppressed and unsuppressed performance.

• Bullets feature a cannelure for a positive case crimp for use in semi-autos.

• Designed specifically to fit, feed, and function in a variety of firearms including gas system guns