Hornady Ammo 338 ARC Rifle Ammunition Brass 20 Rounds Centerfire 307 Grain Sub-X 82272

For shooters stepping into the modern capabilities of the 338 ARC, the Hornady Ammo 338 ARC Rifle Ammunition Brass 20 Rounds 307 Grain Sub-X is purpose-built for quiet authority and dependable terminal performance. Designed around subsonic applications, this load combines heavy bullet weight with controlled expansion technology to deliver results where it counts.

At the heart of this cartridge is the 307 grain Sub-X bullet. Engineered specifically to perform at subsonic velocities, the Sub-X features a polymer tip and internal design that initiates expansion reliably at lower impact speeds. The heavy 307 grain profile enhances momentum and promotes deep penetration, making it a strong option for medium game hunting at practical distances. Where conventional bullets may fail to open at reduced speeds, the Sub-X is built to expand consistently while maintaining structural integrity.

With a muzzle velocity of 1050 feet per second, this load remains below the speed of sound in most conditions, making it an ideal pairing for suppressed rifles. Despite its subsonic performance, it delivers 751 foot-pounds of muzzle energy, providing meaningful impact while maintaining a quieter report and manageable recoil impulse.

Each round is loaded into durable brass casings and paired with dependable centerfire Boxer primers to ensure consistent ignition and smooth function. The brass cases are fully reloadable, offering added value for handloaders who want to fine-tune performance. Hornady’s strict quality control standards ensure uniform powder charges and precise bullet seating for repeatable accuracy.

Packaged in a 20 round box, this Hornady 338 ARC 307 Grain Sub-X ammunition is built for hunters who demand quiet performance, heavy bullet penetration, and reliable expansion in the field.

The 338 ARC 307 Grain Sub-X brass ammo delivers 1050 fps subsonic power.

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