Lehigh Defense Maximum Expansion 300 Blackout .308 194 gr SubSonic Ammunition - 50 Rounds

Lehigh Defense Maximum Expansion 300 Blackout ammunition in subsonic loads is engineered for shooters who demand controlled, reliable performance from suppressed rifles and short-barreled platforms. This 50-round box of 194-grain subsonic .308 ammunition combines the proven stopping authority of Lehigh Defense's Maximum Expansion bullet design with velocities that stay below the sound barrier—ideal for signature-reduced shooting without sacrificing terminal performance. Whether you're running an AR pistol, a dedicated 300 Blackout rifle, or testing suppressor load-outs, subsonic ammunition eliminates the sonic crack of supersonic rounds and complements your suppressor investment by maintaining quiet operation.

The 194-grain bullet weight is purpose-built for subsonic ballistics in the 300 Blackout cartridge, optimizing the velocity-weight balance that defines this platform's niche. Lehigh Defense's Maximum Expansion projectiles are known in the industry for controlled fragmentation and consistent terminal behavior, a reputation earned through rigorous testing. This ammunition is loaded to subsonic specification, so expect velocities tuned to remain subsonic in standard 300 Blackout barrels—critical for maintaining the acoustic advantage your suppressor provides.

If you're new to 300 Blackout or subsonic shooting, the 50-round packaging makes this a practical choice for range sessions, load testing, and getting a feel for how subsonic ammunition performs in your rifle. 300 Blackout has become the go-to cartridge for suppressed shooting and short-range defensive work, and Lehigh Defense ammunition pairs well with modern AR-platform rifles, specialized 300 BLK barrels, and hunters looking to minimize noise without compromising stopping power.

Key Features

• 194-grain bullet weight optimized for subsonic performance
• Lehigh Defense Maximum Expansion bullet design
• Loaded to subsonic velocities for use with suppressors
• 50 rounds per box
• .308 caliber, 300 Blackout chamber

Specifications

Frequently Asked Questions

Is this ammunition subsonic?

Yes. Lehigh Defense Maximum Expansion 300 Blackout ammunition is loaded to subsonic specification, meaning it's designed to travel below the speed of sound in standard 300 Blackout barrels. This minimizes the sonic signature when fired through a suppressor.

What rifles can I shoot this in?

This ammunition is chambered in 300 Blackout, so any rifle, AR pistol, or short-barrel rifle (SBR) in that caliber will accept it. 300 Blackout is an increasingly common platform for both suppressed shooting and hunting applications.

Can I use this ammunition without a suppressor?

Yes, you can fire subsonic 300 Blackout ammunition unsuppressed. However, the primary design benefit—acoustic suppression—is realized when used with a suppressor. The subsonic velocities are tuned to optimize performance with suppressor-equipped barrels.

How many rounds are included?

Each box contains 50 rounds of loaded ammunition.