300 AAC Blackout 190gr Sub-X

300 AAC Blackout 190gr Sub-X – Subsonic. Superior.

Purpose-built for suppressed shooting and real-world performance, our 300 AAC Blackout 190gr Sub-X delivers whisper-quiet precision without sacrificing consistency. Hornady’s Sub-X projectile expands reliably at subsonic velocities, while clean-burning Hodgdon CFEBLK powder keeps your rifle running smoother, longer. Combined with Starline brass and CCI primers, this load is engineered for flawless cycling and consistent performance in AR-platform rifles and bolt guns alike.

This subsonic round also offers an ideal solution for youth hunters and sportsmen—pairing reduced recoil with reliable terminal performance to build confidence in the field.

Component-Driven Confidence:

Projectile: 190gr Hornady Sub-X

• Subsonic expansion designed for optimal terminal performance

Powder: Hodgdon CFEBLK

• Clean-burning and optimized for 300 BLK’s subsonic applications

Primer: CCI #400

• Rock-solid ignition even in suppressed environments

Case: Starline

• Premium, reloadable, and built to last

Quiet. Consistent. Purpose-built for subsonic excellence.

Proudly made in the USA with 100% American-made components—this is ammunition you can trust when precision matters most.