Atomic Subsonic .223 Rem 77gr BTHP 50 Rounds - Box or Case

The Atomic Subsonic line brings heavy-bullet, suppressed-friendly performance to the .223 Remington cartridge. This load drives a 77 grain Hollow Point Boat Tail (BTHP) projectile down a reloadable brass case at a true subsonic 1050 fps, producing a soft 188 ft lbs of muzzle energy for a dramatically reduced report when run through a suppressor.

Built around a boat-tail hollow point that holds accuracy at close range, the Subsonic load stays comfortably below the sound barrier for quiet range sessions and training. The cartridge is safe to fire in 5.56 NATO chambers, and the brass-case reloadable construction makes it a practical pick for high-volume target work.

Because this is a true subsonic .223 Remington load, it will not reliably cycle semi-automatic gas systems and is best paired with bolt-action or manually operated rifles.

Your purchase options:

• Box - 50 Rounds
• Case - 1000 Rounds (20 Boxes)