Hornady Sub-X 7.62x39mm 255gr Subsonic Ammunition - 100 Rounds

The Hornady Sub-X 7.62x39mm delivers reliable subsonic performance with 255-grain projectiles engineered for suppressed firearms. This specialized ammunition maintains accuracy while staying below the sound barrier, eliminating the sonic crack that compromises stealth applications.

What Makes This Different

Unlike standard 7.62x39 rounds that break the sound barrier, Sub-X ammunition stays subsonic through heavy 255-grain bullets and optimized powder charges. The lead-free copper alloy construction expands reliably at lower velocities where traditional hollow points fail. Hornady's Flex Tip technology initiates expansion even through barriers like heavy clothing or light cover.

Key Features

• 255-grain subsonic bullets stay below 1,050 fps for maximum suppressor effectiveness
• Flex Tip design ensures consistent expansion at reduced velocities
• Lead-free copper alloy construction meets environmental regulations
• Optimized powder charge reduces gas blowback in suppressed rifles
• Compatible with standard 7.62x39 chambers and magazines
• Brass cases sized for reliable feeding and extraction
• 100 rounds per box for extended range sessions

Sub-X ammunition excels in hunting applications where noise reduction matters, particularly for pest control and close-range hunting scenarios. The heavy bullets maintain energy downrange while the subsonic velocity prevents game from being spooked by sonic booms. Law enforcement and military applications benefit from the reduced signature and reliable terminal performance through intermediate barriers.

Technical Specs

• Caliber: 7.62x39mm
• Bullet Weight: 255 grains
• Bullet Type: Sub-X Flex Tip
• Muzzle Velocity: Approximately 1,050 fps
• Case Material: Brass
• Primer: Non-corrosive Boxer
• Quantity: 100 rounds per box
• Manufactured in the USA

Professional shooters choose Sub-X when suppressor performance and terminal effectiveness cannot be compromised. The specialized design addresses the unique challenges of subsonic ammunition while maintaining Hornady's reputation for consistency and reliability.