Sig Sauer Defensive 300 Blackout 194-grain Max Expansion ammunition (part no. C300D2-20) is a heavy-bullet defensive load from Sig Sauer built for AR-platform rifles and pistols chambered in 300 Blackout. At 194 grains, this is one of the heavier bullet weights available in the cartridge, the range favored by shooters running the round closer to subsonic velocities where a lighter, faster bullet won’t reliably expand. The Max Expansion design is engineered to open up consistently even at reduced velocity, giving it dependable terminal performance where a standard supersonic hollow point can fall short. It’s a strong pick for a suppressed or subsonic-focused 300 Blackout build kept ready for home defense.

Key Specifications

• Chambered in 300 Blackout, an AR-platform cartridge built for both supersonic and subsonic loads.
• Loaded with a heavy 194-grain bullet, a weight favored for reliable expansion at reduced velocities.
• Uses Sig’s Max Expansion bullet design, engineered to open up consistently even when velocity is limited.
• Built specifically for defensive terminal performance rather than target shooting.
• Packaged 20 rounds to a box.

Frequently Asked Questions

Why choose a heavier 194-grain bullet in 300 Blackout? Heavier bullets hold velocity and expand more reliably when a 300 Blackout load is run closer to subsonic speeds, which lighter bullets can struggle to do.

Is this load suited for a suppressed build? Its weight and expansion design make it a strong fit for shooters running 300 Blackout at reduced velocities, including suppressed setups.

How many rounds come in a box? Each box holds 20 rounds.

Buy the Sig Sauer Defensive .300 Blackout 194gr Ammo

A 300 Blackout platform kept for defense needs a bullet that expands no matter the velocity, and this 194-grain Max Expansion load is built for that job. Add it to your rifle ammunition lineup today. Order from our Lubbock, Texas gun shop and it ships fast to your door.