Authentic Atomic Ammunition Match Subsonic 308 Winchester Ammo 175 Grain Sierra MatchKing Jacketed Hollow Point Box of 100

Description

Authentic Atomic Ammunition Match Subsonic 308 Winchester Ammo 175 Grain Sierra MatchKing Jacketed Hollow Point Box of 100 is engineered for the suppressed precision shooter who demands consistency downrange. This load pairs the legendary Sierra MatchKing projectile with a purpose-built subsonic powder charge, delivering reliable cycling and terminal performance without the supersonic crack.

Key Features

• 175gr Sierra MatchKing Hollow Point: The benchmark for long-range accuracy. The JHP design provides predictable expansion for terminal effect, a critical factor for hunting applications under stress.
• True Subsonic Velocity: Tuned to stay below 1,100 fps from a 16-inch barrel. This eliminates the sonic crack, making it ideal for suppressed fire where noise reduction is mission-critical.
• Match-Grade Consistency: Built with stringent quality control for minimal velocity deviation. This translates to tighter groups and predictable point of impact shift from your supersonic zero.
• Boxer-Primed, Reloadable Brass: Features high-quality, once-fired brass that’s been processed and reloaded to exacting standards. This matters for handloaders looking to replicate the load or repurpose the components.

Specifications

Specification	Detail
Cartridge	308 Winchester
Bullet Weight	175 Grains
Bullet Type	Sierra MatchKing Jacketed Hollow Point (JHP)
Muzzle Velocity (per manufacturer)	~1050 fps (16″ barrel)
Muzzle Energy	~428 ft-lbs
Case Type	Reloadable Brass
Primer	Boxer
Quantity	100 Rounds
Muzzle Pressure	Subsonic (Low)

Head-to-Head

Feature	Atomic 175gr SMK	Brand X 168gr HPBT	Brand Y 220gr RN
Bullet	Sierra MatchKing (JHP)	Generic HPBT	Round Nose
Velocity	~1050 fps	~1020 fps	~1000 fps
Best For	Precision / Hunting	Plinking	Short-Range
BC (approx.)	0.505	0.450	0.250

Pros & Cons

Pros:

• Superior accuracy potential from the Sierra MatchKing projectile.
• Reliable subsonic performance ensures consistent cycling in gas guns.
• High-quality, reloadable brass adds long-term value.

Cons:

• Higher cost per round than plinking subsonics.
• Significant bullet drop requires precise dope at extended ranges.

Who Should Buy This

• The hunter using a suppressed .308 who requires ethical, terminal performance on game at subsonic velocities.
• The precision shooter wanting to practice or compete with their suppressed rifle without hearing protection, maintaining a match-grade standard.
• The handloader seeking a proven, high-performance subsonic load as a baseline for development.

FAQ

Is Authentic Atomic Ammunition Match Subsonic 308 Winchester Ammo 175 Grain Sierra MatchKing Jacketed Hollow Point Box of 100 worth the price?

Yes, if your need is accuracy and terminal performance. You’re paying for the Sierra MatchKing bullet and a tuned load, not just generic subsonic function. For simple noise reduction, cheaper options exist in our ammunition category.

What comes with Authentic Atomic Ammunition Match Subsonic 308 Winchester Ammo 175 Grain Sierra MatchKing Jacketed Hollow Point Box of 100?

You receive 100 rounds of complete ammunition, packed in a standard 100-round box. Each cartridge is ready to fire.

How does Authentic Atomic Ammunition Match Subsonic 308 Winchester Ammo 175 Grain Sierra MatchKing Jacketed Hollow Point Box of 100 compare?

It sits at the top tier for precision. Compared to heavier, round-nose subsonics, the 175gr SMK has a far better ballistic coefficient (~0.505) for wind resistance and retained energy. See the Head-to-Head table for a direct breakdown.

In stock at Glock Switch Shop. Ships discreet. 30-day returns.

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Last updated: March 2026