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300 Blackout Ammo | Fenix Ammo

300 blackout ammo lives two lives, and Fenix loads for both of them in Novi, Michigan. Suppressor owners get true subsonics: a 190 grain FXP Sub-X and a 220 grain FMJ. Shooters who want full speed get a 110 grain FXP VMAX and a 150 grain FMJ in a 250 round pack. Every load is factory direct with live pricing on the cards below, so pick your lane and load up.

5 products

Subsonic or Supersonic 300 Blackout Ammo

Decide how you shoot before what you shoot. Behind a suppressor, the 190 and 220 grain loads stay below the speed of sound at their published velocities, which is what keeps the report down to its quietest. Unsuppressed rifles running full speed favor the 110 and 150 grain loads. Owning one of each pair is common; the cartridge was built to swing both ways. The product grid below carries all four loads side by side, so stocking both lanes takes one order rather than a scavenger hunt.

The Four Fenix 300 Blackout Loads

The 110 grain FXP VMAX is the fast, expanding option that hunters pick for its published velocity and polymer tip. The 150 grain FMJ is the volume trainer, the only load here in a 250 round pack. The 190 grain FXP Sub-X pairs subsonic speed with an expanding Hornady Sub-X projectile. The 220 grain FMJ is the classic heavy subsonic for quiet practice sessions. All four are loaded on the same Michigan presses with their velocities published on each product page, so you always know which side of the sound barrier you are buying.

Suppressor Owners Start Here

Run the published velocity numbers on each product page against the speed of sound and you will see why the 190 and 220 grain loads are the suppressor picks. Cycling depends on your barrel, gas system, and can, so confirm function with a box before you commit to a case. Once your rifle proves it runs them, quiet practice gets addictive. Keep your subsonic and supersonic bags clearly separated in storage; the two lanes shoot to different points of impact and mixing mags at the range gets confusing fast.

Pack Sizes and Planning a 300 Blackout Order

Only the 150 grain FMJ ships 250 to a bag; the other three come 100 to a bag. A sensible split for a suppressed rifle is a big bag of 150 for loud days and a 100 count of your chosen subsonic for quiet ones. Divide live price by round count on each card to see exactly what each lane costs you. Blackout shooters tend to reorder the 150 grain FMJ three times as often as anything else, which tells you where the volume really goes.

Frequently Asked Questions

Which 300 blackout load should I run suppressed?

The 190 grain FXP Sub-X or the 220 grain FMJ. Both are loaded subsonic at their published velocities; pick the Sub-X for an expanding projectile or the FMJ for economical quiet practice.

Is the 150 grain FMJ supersonic?

Yes, at its published velocity it is a full speed load. It is also the value pick of this lineup, being the only 300 Blackout load we pack 250 to a bag.

What makes the 190 grain Sub-X different from the 220 grain FMJ?

The Sub-X carries an expanding Hornady projectile for use beyond the range, while the 220 grain FMJ is a non expanding practice load. Both stay subsonic; the difference is the job.

Can I hunt with the 110 grain VMAX?

It is the load in this lineup built with an expanding varmint style projectile and full speed velocity. Check your local hunting regulations for caliber and projectile requirements before your hunt.

Will subsonic 300 blackout cycle my rifle?

Most set ups run it well, but cycling depends on your barrel length, gas system, and suppressor. Prove it with one 100 count bag before ordering deep.