300 AAC Blackout - 200 gr Subsonic - 100 CT

Phantom Defense

$59.99
(14 reviews) Write a Review
Manufacturer:
Phantom Defense
Caliber:
7.62x35mm / 300 AAC Blackout
Casing:
Brass
Condition:
Remanufactured
Grains:
200

This 200 gr subsonic 300 Blackout round is designed for shooters seeking reliable, quiet performance. Featuring a copper-plated lead projectile, this round is ideal for target practice, training, and delivering consistent subsonic accuracy. 

Key Specifications
Caliber: 300 Blackout
Bullet Weight: 200 gr
Bullet Type: Copper-plated lead
Average Velocity: 1,050 fps
Kinetic Energy: 539 ft-lbs

With a velocity of 1,050 fps and generating 539 ft-lbs of kinetic energy, this round is optimized for subsonic use, providing smooth cycling and precision at shorter ranges. Perfect for those looking to practice quietly while maintaining effective power on target.  

14 Reviews Hide Reviews Show Reviews

  • 5
    300 AAC Blackout - 200 gr Subsonic

    Posted by Bill H on Nov 27th 2025

    These 200gr subs are some of the best .300 Blackout ammo I've found to date. They're extremely quiet when suppressed, soft shooting and very, very clean. Couldn't ask for better. These are my number one choice for the range.

  • 5
    300 AAC BLACKOUT - 200 GR SUBSONIC

    Posted by Steve on Nov 23rd 2025

    Shot 2 30 rd mags through my PSA AR pistol 7.5” barrel H2 buffer + 1 quarter in the buffer tube.. Semi no malfunctions. Super safe no malfunctions. Will shoot more when I get my Socom300 sps.

  • 5
    Great quality

    Posted by David Smith on Nov 19th 2025

    Bullets look new, good price for range plinking. Nice and quiet with suppressor. Will for sure be buying again.

  • 4
    Waz Sup!

    Posted by Walter vonborstel on Sep 23rd 2025

    Beautiful looking rounds however, they are not functional in my build. Im gonna try a tune up, lighter spring & lightweight hydraulic buffer and see if I can get em gamma gamma! They look awesome! May try the 190's. Thanks

  • 5
    Damn good 300Blk

    Posted by Joseph R on Sep 20th 2025

    As far as customer service goes these guys absolutely suck! I reached out 3 times and got zero response. Took close to 3 weeks for delivery but the ammo is incredible to say the least. These subsonic rounds truly are subsonic. Quietest I’ve shot.

  • 5
    Best ammo money can buy I recommend 100%

    Posted by El chapo Dominguez on Aug 16th 2025

    100% satisfied

  • 5
    Ammo

    Posted by Edwin Watts on Aug 2nd 2025

    Ammo was excellent and silent, no issues occurred. Would recommend.

  • 5
    300Blk 200gr Subsonic 100

    Posted by Jason on Jul 27th 2025

    ? reliable through the first 200 rounds. Looks factory new. Buy with confidence. I’m here to order a couple more bags!

  • 5
    This ammo is superior

    Posted by Michael S on May 20th 2025

    I got some of this to zero/test functionality on a BRN-180S. This is so much better than any Subsonic bulk ammo I've tested in my other 300 blkout's. Amazing stuff

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