The Atomic .308 Winchester 175gr HPBT Subsonic (brand part no. 00498) is a purpose-built subsonic load pairing a heavy 175-grain hollow point boat tail bullet with a muzzle velocity that stays under 1,050 fps for quiet, stable accuracy through a suppressed .308 rifle. Atomic tunes this load specifically to hold subsonic velocity while keeping the bullet stable downrange, avoiding the accuracy loss that comes from simply slowing down a standard supersonic .308 load. Among our rifle ammunition, this Atomic subsonic load suits suppressed .308 bolt-gun and AR-10 shooters who want quiet, accurate performance rather than a training-only round.

Key Specifications

• The chambering is .308 Winchester.
• The bullet weight is 175 grains.
• The bullet is a hollow point boat tail (HPBT).
• The muzzle velocity stays under 1,050 fps, below the speed of sound.
• Built for stable accuracy through a suppressor.
• Each box holds 20 rounds.

Frequently Asked Questions

Is this ammo actually subsonic? Yes, Atomic tunes this load to stay under 1,050 fps, below the speed of sound.

Will this stay accurate at subsonic velocity? Yes, the 175-grain HPBT bullet and load are specifically tuned for stable flight at subsonic speed, unlike simply downloading a standard supersonic round.

How many rounds are in this box? This listing is a single 20-round box.

Buy Atomic .308 Winchester Subsonic Ammo

Stable, suppressor-optimized .308 performance with a heavy 175-grain HPBT bullet is exactly what this Atomic subsonic load delivers. Order it from our Lubbock, Texas gun shop and we’ll get it to you as soon as it’s ready to ship.