.338 ARC Subsonic

The .338 ARC (Advanced Rifle Cartridge) demonstrates exceptional suitability for subsonic applications, making it a compelling choice for suppressed shooting. Developed by Hornady, this cartridge balances energy retention, accuracy, and reliable cycling in AR-platform rifles—even at subsonic velocities.

Designed with an efficient case geometry and optimized for heavy, high-ballistic coefficient projectiles, the .338 ARC maintains impressive downrange performance below the speed of sound. Subsonic loads, typically pushing 300-grain bullets at around 1,050 fps, deliver significant terminal energy while minimizing recoil and sound signature—ideal for tactical, law enforcement, or stealth hunting scenarios.

Unlike many traditional subsonic rounds that struggle with trajectory consistency, the .338 ARC ensures tight velocity spreads and consistent ignition. This results in better accuracy and reliable function, even in semi-automatic platforms. Its compatibility with standard AR-15 components and suppressor-friendly behavior further enhance its operational flexibility.

Whether you’re engaging targets discreetly or hunting in noise-sensitive areas, the .338 ARC provides the silence of a subsonic round without compromising effectiveness. It stands out as a modern solution for those seeking precision, power, and quiet performance in one innovative package.