STEADFAST .300 BLK 200gr HP SMK Subsonic is constructed utilizing a Sierra Matchking hollow point boat tail projectile loaded in new brass casings.

Cycles most factory semi-auto rifles.

Velocity: ~1020 fps in a 16-inch bbl with 1:8 twist

Recommended for barrels with a twist rate of 1:8 or faster – e.g., 1:8, 1:7, 1:6, 1:5.
Slower twist rates (e.g., 1:9, 1:10) may under-stabilize the bullet and inhibit accuracy.

These rounds of ammunition are BLEMS. They may have cosmetic defects such as surface scratches, dings or tarnish. These cosmetic defects will not inhibit performance.