Hornady SUB-X 45 Cal 410 Grain FTX Bullets (.458 Diameter) - Box of 50

Hornady SUB-X 45 Cal 410 Grain FTX bullets are purpose-built for subsonic handloads in .458 diameter rifles. If you're loading ammunition for suppressed shooting, big-game hunting with reduced velocity, or semiautomatic .45 caliber rifles, these bullets are engineered to deliver reliable expansion and deep penetration at speeds well below the sonic barrier—velocities where most conventional hunting bullets simply fail to open.

The ballistic architecture centers on Hornady's patented Flex Tip technology, a specialized elastomer insert seated in the hollow-point cavity that initiates expansion at velocities as low as 900 fps. The gilding metal jacket features long grooves that work in concert with the flat profile and Flex Tip design to promote consistent mushrooming even when your powder charge keeps bullet speed down. Lead core construction delivers the mass and density needed for deep, straight-line penetration through heavy bone and tissue.

Built for the modern semiautomatic shooter, these bullets carry a cannelure—a crimping groove rolled into the jacket that locks the case neck firmly around the bullet body, preventing bullet creep during cycling and feeding. This feature makes them reliable in gas-system rifles and other semi-auto platforms where recoil or bolt speed might walk a uncrimped bullet back into the case. Each box contains 50 bullets ready for the loading press.

Hornady's ballistic testing protocol meets FBI standards for terminal performance, so you're not just buying a gimmick; you're buying bullets validated against real-world expansion and penetration benchmarks.

Key Features

• Patented Flex Tip technology enables reliable expansion at subsonic velocities as low as 900 fps
• Long grooves in gilding metal jacket promote consistent mushrooming at reduced speeds
• Cannelure for positive case crimp—ideal for semiautomatic and gas-system rifles
• Lead core design delivers deep penetration and mass retention
• Meets FBI protocol terminal ballistic performance standards
• Box of 50 bullets ready for reloading

Specifications

Frequently Asked Questions

Will these bullets work in my semiautomatic .45 rifle?

Yes. The cannelure allows you to crimp the case neck securely around the bullet, preventing bullet creep during cycling. This makes them well-suited for semiautomatic and gas-system platforms where recoil can affect bullet seating.

What velocity do I need to achieve expansion with SUB-X bullets?

Hornady's Flex Tip technology is designed to initiate expansion at velocities as low as 900 fps, making these bullets reliable for true subsonic loads where conventional hollowpoints often fail to open.

Are these bullets suitable for suppressed shooting?

These bullets are purpose-designed for subsonic velocities, making them a natural choice for suppressed applications where you're intentionally keeping bullet speed below the sound barrier.

How does the cannelure affect my reloading process?

The cannelure provides a dedicated crimp groove, allowing you to apply a firm roll crimp to lock the case neck to the bullet. This is especially important in semiautomatic rifles where loose rounds may migrate under recoil.