STEADFAST .300 BLK 200gr TMJ Subsonic Reman is constructed utilizing a Berry's Bullets total metal jacket, spire point projectile loaded in remanufactured/repurposed .223/5.56 brass casings.

Cycles most factory semi-auto rifles.

Velocity: 1030 fps in a 16 inch bbl with 1:8 twist, 965 fps in a 7.5" 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.