Sig Sauer Defensive 300 Blackout 110-grain Tac-TX ammunition (part no. C300D1-20) is a lead-free defensive load from Sig Sauer built for AR-platform rifles and pistols pressed into home-defense or duty roles. The Tac-TX bullet is a solid-copper hollow point engineered to expand reliably at 300 Blackout velocities while holding together for deep penetration, rather than fragmenting on impact. At 110 grains, it’s on the lighter end of the 300 Blackout weight range, favoring higher velocity and faster expansion over the deeper penetration of heavier subsonic loads. It’s a strong choice for a supersonic 300 Blackout carbine or pistol kept loaded for defense.

Key Specifications

• Chambered in 300 Blackout, an AR-platform cartridge built for hard-hitting close-range performance.
• Loaded with a lighter 110-grain bullet for higher velocity and fast expansion.
• Uses Sig’s Tac-TX solid-copper, lead-free hollow point for controlled expansion and deep penetration.
• Built specifically for defensive use rather than target practice.
• Packaged 20 rounds to a box.

Frequently Asked Questions

Is the Tac-TX bullet lead-free? Yes, it’s a solid-copper hollow point with no lead core.

Why is this load lighter than typical 300 Blackout defensive rounds? The 110-grain weight favors higher velocity and faster expansion, a different terminal approach than heavier subsonic loads.

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

Buy the Sig Sauer Defensive .300 Blackout Ammo

A 300 Blackout carbine or pistol kept for defense needs a bullet built to expand reliably, and this Tac-TX load is engineered for that job. Add it to your rifle ammunition today. Order from our Lubbock, Texas gun shop and it ships fast to your door.