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300 Blackout - 220gr - TMJ - Factory New (Subsonic)

Minuteman Munitions

$22.29
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$9.98 Flat Rate Shipping - Orders Ship in 3-5 Business Days *Items may be in sealed bags to help facilitate quicker lead times!
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Developed to be Quiet and Precise

Minuteman Munitions 300 Blackout Ammo Specs:

  • Quantity: Boxes of 30rds
  • Bullet: 220gr Campro
  • Velocity: 1030ft/s from an 9" MCX Barrel 
  • Casing: Factory-new. boxer-primed brass
  • Ballistic Coefficient: G1 .373

Minuteman Munitions 300 Blackout Total Metal Jacket Benefits:

  • No exposed lead to create smoke during firing.
  • Does not foul the barrel with lead.
  • Keeps guns cleaner for longer periods of shooting.

Improved Design

  • Improved accuracy due to increased muzzle velocity
  • Manufactured using cleaner, faster burning powder
  • Enhanced firearm reliability

Important Notes

  • Designed to be subsonic in up to 11" barrels, it will function in longer barrels but not guaranteed to be subsonic.
  • 300 Blackout functions reliably with Pistol gas length systems.
  • Minimum of 1:8 twist required to ensure projectile stabilization, 1:7+ is recommended for best accuracy. 

 

 

 

All ammunition warranty claims are handled on a case-by-case basis. In order to initiate a claim, please contact our Customer Service Department at CS@MinutemanMunitions.com with your ammunition lot number and the details of your issue including the firearm make and model. NOTE: If you do not have the lot number we CANNOT process your claim. Be sure to retain lot numbers in the event there is an issue with your ammo. All Minuteman Munitions ammunition is warranted against material and workmanship defects for up to one (1) year from the purchase date. During the warranty period, we will (at our sole option) repair, replace or refund the purchase price of any defective part or product covered by this warranty when it is returned by the original owner with proof of purchase. All ammunition warranty claims must have a Return Authorization (RA) number assigned before acceptance at our facility for further examination. Please DO NOT send ammunition without obtaining a RA number from our Customer Service Department. NOTE: This warranty does not cover products damaged or rendered defective due to accident, misuse, abuse, modification, water damage, neglect, reloading, improper handling or storage, or failure to follow instructions for use. To return a product, send with transportation prepaid, to: Minuteman Munitions, Inc 7610-B Canoe Rd Greensboro, NC 27409 Prices and/or specifications are subject to change without notice. Warranty only valid to original purchaser if purchased through website or authorized dealer.

55 Reviews Hide Reviews Show Reviews

  • 5
    300 BLCKOUT 220GR TMJ SUBSONIC

    Posted by James on 4th Oct 2024

    100% recommend!! If only I could share pics. Price was skeptical low, did not make up for with shipping. Arrived quickly and packaged perfectly, no busted boxes "leaking" loose rounds into the main box. Range day; flawless execution. Running subsonic thru suppress 7.5" with the holes where I say at 100 yards. These guys are legit and getting Christmas card from me. Finally. Thank you, Minuteman Munitions.

  • 5
    Great Choice for 300 BLK

    Posted by Josh on 4th Oct 2024

    First time buyer here and I purchased 120 rounds to test in my firearm as it tends to be very picky with ammo. All 120 rounds worked perfectly, not a single issue or malfunction and I even trend to to cause a malfunction. 100% will be purchasing again. Great choice for range ammo.

  • 5
    pew pew pew

    Posted by Nate on 25th Sep 2024

    Ever since buying some 9mm on a whim a few years back, I've been really impressed with MinutemanMunitions - I always check their stock now before buying anywhere else. I love their products and I'm really impressed with these 300 blk subsonic rounds. I always consider "Fun per dollar" value and this definitely hits the mark. Please don't buy these up before I have a chance to purchase more :)

  • 5
    300 blk out 220 g subsonic

    Posted by HKGunPlay YT on 24th Sep 2024

    Between my local shop where I first found this ammo and here on the online site I have accumulated a thousand rds so far. This by far is the best 300 blk out subsonic ammo. It’s quite out of my 5 inch maxim pdx and I haven’t had one failure yet. I recommend this ammo to anyone especially with sbr and suppressors. Hopefully the price stays the same because I am trying to stock pile as much as possible. I promise you won’t regret getting as much as possible.

  • 5
    .300 BLK - 220gr

    Posted by Nate on 17th Sep 2024

    Extremely consistent, very quiet and most importantly, accurate. This is my favorite 300 BLK ammo. Its ridiculously quiet through my SureFire SOCOM 300 and always accurate. Look no further!!

  • 4
    crappy ammo that dont cycle

    Posted by william Dorsey on 13th Sep 2024

    I bought 360 rounds of this ammo, and it will not cycle with a suppressor. its pretty much worthless. i guess ill have to take them apart and load them properly. UPDATE I SINCERELY Apologize for the negative review I recently gave your ammo. I'm an old grumpy sniper, who at times jumps to conclusions to which I'm at no fault. since my review I have found the fault of the failure to cycle issue was in fact my rifle. I hereby strike my original review and give it four stars for price and packaging( love the 30 rnd boxes). I do find the accuracy to be less than optimal, but suffice for what it is intended for. Again, I apologize for the bad review.

  • 5
    .300 Blackout 220 grain

    Posted by Bill on 17th Jul 2024

    This ammo is impressive. I've purchased several times now and have not had a bad round - very consistent. I like that Minuteman uses shorter barrels to test velocity. And I haven't found any other retailer that compares to Minuteman's price per round along with their flat rate shipping. I will be back for more !

  • 5
    220 gr 300 blkout

    Posted by wayne llorenzo benjamin on 8th Jul 2024

    very quiet very accurate zero malfunctions i will be ordering more, alot more, fast shipping from this company

  • 5
    MINUTEMAN MUNITIONS 300 BLACKOUT - 220GR - TMJ - FACTORY NEW (SUBSONIC)

    Posted by Eric on 25th Jun 2024

    Delivered quickly, now have to make time to get to the range and test/compare to other ammo.