Winchester Super-X Ammunition 308 Winchester Subsonic 185 Grain Power-Point 20RD

Winchester Super-X 308 Winchester subsonic ammunition brings serious performance to shooters who need reliable, quiet centerfire rifle rounds. Built on Winchester's legacy of dependable ammo for hunters and precision shooters, these 185-grain Power-Point loads deliver controlled expansion and consistent performance at subsonic velocities. Whether you're running a suppressed 308 for stealth hunting, tackling medium-range precision work, or practicing with hearing protection in mind, Super-X subsonic rounds give you the ballistic consistency and terminal performance Winchester is known for—without the supersonic crack.

At 1060 fps muzzle velocity, these loads stay subsonic through most modern rifle platforms, making them ideal for suppressed shooting where bullet crack can defeat the whole point of running a can. The 185-grain Power-Point bullet is engineered for controlled expansion, so you get reliable performance downrange without unreliable velocity variation between shots. Each box contains 20 rounds, so you can stock up for the range or hunting season with the confidence that comes from Winchester's century-plus track record.

Super-X ammo has earned its reputation by simply working—feed after feed, season after season—which is exactly what you want when your shot counts. These subsonic loads are assembled to tight tolerances and use Winchester's proven powders and primers, so you get the consistency that lets you focus on what matters: making accurate shots quietly and effectively.

Key Features

• 185-grain Power-Point bullet for controlled expansion and terminal performance
• Subsonic loading at 1060 fps for use with sound suppressors and hearing protection
• 20-round box for convenient range or field use
• Winchester Super-X quality and consistency you can rely on

Specifications

Frequently Asked Questions

What firearms can I use Winchester 308 Winchester subsonic ammo with?

These are 308 Winchester loads, so they'll chamber in any rifle chambered for 308 Winchester (including AR-10 platforms and bolt guns). Subsonic loads are particularly popular in suppressed rifles, but will function in any 308 rifle.

Will subsonic 308 ammunition work with my suppressor?

Yes. Subsonic ammo is specifically designed to stay below the speed of sound (1125 fps at sea level), and at 1060 fps these loads meet that threshold. This eliminates bullet supersonic crack, letting your suppressor perform at its quietest.

How many rounds come in each box?

Each box contains 20 rounds. Winchester also offers this load in bulk cases of 200 rounds (10 boxes) for shooters who want to stock up.

What's the difference between subsonic and standard 308 loads?

Subsonic loads use lighter bullets and reduced powder charges to keep velocity below the sound barrier, eliminating the supersonic crack that would defeat hearing protection and suppressor effectiveness. Standard loads travel faster and hit harder at distance, but produce more noise.