Hornady 82272 338 ARC 307gr Sub-X Subsonic Ammunition - 20 Rounds

The Hornady 82272 338 ARC 307gr Sub-X delivers maximum terminal performance in a purpose-built subsonic cartridge. This specialized ammunition combines Hornady's Sub-X bullet technology with the versatile 338 ARC platform for suppressed shooting applications.

What Makes This Different

The 307-grain Sub-X bullet features a lead core with strategically placed grooves that create consistent expansion at subsonic velocities below 1050 fps. Unlike standard hunting bullets that require high velocity for expansion, the Sub-X design reliably opens even when velocity drops significantly. The heavy bullet weight maintains downrange energy while staying subsonic through longer barrel lengths.

Key Features

• 307-grain Sub-X bullet optimized for subsonic performance
• 338 ARC cartridge compatible with AR-10 platform rifles
• Controlled expansion design with strategic groove placement
• Muzzle velocity approximately 1000 fps from 16-inch barrel
• Brass cases suitable for reloading applications
• 20 rounds per box for extended range sessions
• Consistent powder charges for reliable cycling

This ammunition excels in hunting scenarios where noise reduction is critical, particularly when used with suppressors. The heavy bullet maintains lethal energy at typical hunting distances while producing minimal sound signature. Law enforcement and tactical applications benefit from the reduced noise profile without sacrificing terminal effectiveness on target.

Technical Specs

• Caliber: 338 ARC (8.6x43mm)
• Bullet Weight: 307 grains
• Bullet Type: Sub-X expanding
• Muzzle Velocity: ~1000 fps
• Case Material: Reloadable brass
• Quantity: 20 rounds per box
• Overall Length: 2.26 inches
• Manufactured: United States

The 338 ARC platform offers superior ballistic performance compared to traditional subsonic cartridges while maintaining compatibility with standard AR-10 magazines and bolts. Professional shooters choose this ammunition when maximum effectiveness must be paired with minimal acoustic signature.