300 AAC Blackout - 190 gr Sub X - 100 CT - SKU: 300-1006

Phantom Defense

$65.00
(8 reviews) Write a Review
Manufacturer:
Phantom Defense
Casing:
Brass
Condition:
Remanufactured

This 190-grain 300 Blackout load is built around the Sub-X projectile, optimized for reliable expansion and effectiveness at subsonic velocities. Engineered for consistent performance, it offers excellent terminal ballistics and smooth cycling—perfect for suppressed setups or operations where stealth is paramount.

8 Reviews Hide Reviews Show Reviews

  • 5
    300 blk 190gr sub x

    Posted by Joseph Bullock on Jul 1st 2025

    Could not ask for better. My Daniel Defense pdw loved them. Super accurate and quiet. I used a yhm 30cal resonator k suppressor with Qd break

  • 5
    Don’t hesitate just buy it

    Posted by Rustin Hara on Jul 1st 2025

    This is great ammo! Already ran through 100 rounds and had to order more, no issues with the ammo at all great buy at a great price! Will only be ordering my ammo through phantom defense!

  • 5
    190 gr sub x

    Posted by Josh with Utah Backyard Ballistics on Jul 1st 2025

    Very happy with the value of this product... Good subsonic home defense round for barely over .63 cents a round? These are usually $30 for a box of 20 in the big box stores! Great value and Phantom Defense was great to work with

  • 5
    Great bang for the buck

    Posted by KPed on Jun 11th 2025

    The 300blk bolt action loves 'em and even better, the 5.5" Rattler eats them up! I'll be nabbing these every time they're in stock.

  • 5
    Amazing

    Posted by Jim on Apr 27th 2025

    Shot with a brn-180 gen 3, 9"barrel suppressed with an OCL Polonium 30. Cycled great, consistent subsonic velocity, great expansion. Best part, they're cheaper than subsonic plinking ammo from other manufacturers. I'm buying a whole lot more.

  • 5
    From Honey Badger pistol suppressed

    Posted by Hunter Green on Apr 3rd 2025

    Awesome loads no problems at all going to order a shitload more along with some big bros when they come back in stock.

  • 5
    Q sugar weasel 7inch with trash panda

    Posted by Eric Young on Mar 31st 2025

    The 190 grain performed amazing. Hearing safe with suppressor. Amazing groups at all distances. Price for these rounds is amazing.

  • 5
    300 BLK 190 Gr Sub-X

    Posted by Rhett A on Oct 28th 2024

    Chamber great, consistent muzzle velocity, they go boom! Great price for the Sub-X bullet, just bought 500 more.

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