STEADFAST .300 BLK 220gr HPBT SMK (Sierra Matchking) Subsonic Reman – 140 rds Bulk Pack


Out of stock

Out of stock

SKU: B220-MKSFRE-140 Categories: , Tags: , ,

STEADFAST .300 BLK 220gr HPBT SMK Subsonic Reman is constructed utilizing a Sierra Matchking hollow point boat tail projectile loaded in remanufactured/repurposed .223/5.56 brass rifle casings with mixed headstamps.

140 Round Bulk Pack

These brass rifle casings are remanufactured. Some of these casings may have cosmetic defects such as surface scratches, dings or light tarnish. These cosmetic defects do not affect performance.

Velocity: ~1000 fps in a 16 inch bbl with 1:8 twist / ~900 fps in a 16 inch bbl with 1:7 twist

Cycles most factory semi-auto rifles.

BC: G1=.608

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.

Additional information

Weight 10 lbs
Dimensions 5 × 4 × 3 in

300 AAC BLK 220 gr SMK

# of rounds





300 AAC



Brass type