Atomic .308 Winchester 175-grain Subsonic BTHP ammunition (brand part no. 00430) is built for suppressed rifle shooters who want their .308 to stay quiet without giving up accuracy. Atomic loads a Sierra 175-grain boat tail hollow point to a rated 1,050 fps, keeping the round well below the speed of sound while the boat tail profile and streamlined meplat hold a consistent flight path downrange. Because this is a match-style hollow point built for accuracy rather than expansion, it suits suppressed target shooting, precision practice, and low-noise range sessions. Atomic assembles the load entirely in the USA and ships every box in a reusable plastic case. Among rifle ammunition for suppressor owners, this load is engineered for the quiet job.

Key Specifications

• The chambering is .308 Winchester.
• The bullet weighs 175 grains, a heavy-for-caliber weight suited to subsonic velocities.
• The bullet is a Sierra boat tail hollow point (BTHP), a match-style design built for accuracy rather than expansion.
• The load runs subsonic at a rated 1,050 fps, staying below the speed of sound for suppressor use.
• Muzzle energy is rated at 428 foot-pounds, consistent with a subsonic loading.
• The cases are reloadable brass, and each box includes a reusable plastic case.
• Atomic assembles the load entirely in the USA.
• Each box holds 50 rounds, a solid amount for a dedicated suppressed session.

Frequently Asked Questions

Is this ammunition subsonic? Yes, Atomic rates this 175-grain BTHP load at 1,050 fps, keeping it below the speed of sound for use with a suppressor.

Can this be fired in a 7.62x51mm NATO rifle? .308 Winchester and 7.62 NATO chambers are dimensionally similar, and modern rifles chambered for either typically handle this load — for older military-spec 7.62 chambers, check your rifle’s barrel markings or manufacturer guidance.

Is the BTHP bullet built to expand? No, this Sierra boat tail hollow point is a match-style bullet built for accurate, consistent flight rather than expansion.

Buy Atomic .308 Winchester 175gr Subsonic BTHP

Suppressed .308 rifles need a load engineered to stay quiet without turning into a lobbed, inaccurate round, and Atomic built this BTHP specifically for that job. Order from our Lubbock, Texas gun shop and it ships fast to your door.