The Hornady Sub-X (Subsonic eXpanding) .30 Caliber 190gr rifle bullet (brand part no. 30730) is purpose-built for subsonic .308-diameter loads, delivering controlled expansion below the speed of sound where most conventional expanding bullets fail to open reliably. Hornady uses a lead core wrapped in a gilding metal jacket cut with long grooves, combined with a flat-profile design and a patented Flex Tip insert seated in the bullet’s hollow point cavity, to trigger expansion even at low subsonic velocities. Cannelures provide a positive case crimp, which Hornady notes makes the Sub-X well suited to semiautomatic rifles. It ships 100 to a box.

Key Specifications

• .30 Caliber (.308-diameter) bullet for standard .30-caliber rifle cartridges.
• 190-grain bullet weight for subsonic .30-caliber loads.
• 100 bullets per box for a full handloading batch.
• Patented Flex Tip insert seated in the hollow point cavity to trigger expansion at subsonic velocities.
• Long-grooved gilding metal jacket over a lead core.
• Controlled, low-velocity expansion as a result of the grooved-jacket design.
• Flat bullet profile as part of the Sub-X design.
• Cannelure for positive case crimp, suited to semiautomatic rifles.
• Ships at approximately 2.81 lb per box.

Frequently Asked Questions

What makes the Sub-X different from a standard expanding bullet? Its patented Flex Tip insert and grooved jacket are engineered specifically to expand reliably below the speed of sound, where conventional bullets often fail to open.

Is this bullet suited to semiautomatic rifles? Yes, its cannelure provides a positive case crimp that Hornady specifically notes works well in semiautomatic platforms.

Buy the Hornady Sub-X .30 Caliber 190gr Subsonic Bullets

Order this box of 100 Hornady Sub-X .308-diameter projectiles from our reloading bullets selection to build reliable subsonic .30-caliber loads. Order from our Lubbock, Texas gun shop for fast, insured shipping nationwide.