300 AAC Blackout - 190 gr Sub X - 100 CT

Phantom Defense

$75.00
(15 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.

15 Reviews Hide Reviews Show Reviews

  • 5
    Excellent loading for great price

    Posted by Brandon on Nov 12th 2025

    Phantom has a great price for this round. It cycles great in my rifle, and is accurate. I'm stocking up my 300blk from Phantom with this round, the 110Vmax, and the 220 FMJ. Look no further!

  • 5
    190gr subx loading

    Posted by W Rhea on Oct 8th 2025

    Very high quality ammunition shoots sub moa out of 8.5 sbr build 1-7 twist barrel thanks for a great product W R .

  • 5
    190gr x reloads

    Posted by William Rhea on Sep 24th 2025

    Very light recoil out of sbr with can 50yards groups look good functions fine running light buffer.

  • 5
    300 blackout 190 grain sub x

    Posted by Scott Barmes on Aug 22nd 2025

    Good ammo at good price

  • 5
    300 AAC Blackout - 190 gr Sub X

    Posted by MARK LIVINGSTON on Aug 9th 2025

    Awesome ammunition! I finally had time to take my suppressed 16" 300 BLK AR to the range and sight in my LPVO scope. Once I got it dialed in, I was shooting sub-MOA at 100 yards. That's about as far as I want to push this round. I have a lot of confidence I will see a Hog drop where it stands on my next hunt!

  • 5
    190gr sub x

    Posted by Paul Ryan on Jul 20th 2025

    Great price and worked great. Ordered more and I plan on trying other 300 from Phantom as I am now a happy customer.

  • 5
    Great ammo! Whisper Quiet!

    Posted by Carl Turner on Jul 12th 2025

    Works flawlessly in my 7.5" 1:8 twist PDW. I generally don't go over 190gr because of the twist in this upper. This stuff performs flawlessly. Will, and have, order more.

  • 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!

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