Gorilla 300 AAC BlackOut Subsonic 220gr Sierra MatchKing – 160 Round Bucket

Gorilla 300 AAC BlackOut Subsonic 220gr Sierra MatchKing – 160 Round Bucket


(32 customer reviews)

In stock

*Adult Signature Required*

Due to component shortages, we are currently using mil-spec primers in some of our 300BLK loads. These primers contain a harder primer cap designed for use in semi-automatic weapons. You may experience lite strikes in bolt action platforms due to the harder primer cap. Please be aware of this issue before purchasing. For safety reasons, we do not allow returns once the product has been delivered. If you would like to check availability of 300BLK ammo for use in your bolt action platform, please contact us before purchasing.  

32 reviews for Gorilla 300 AAC BlackOut Subsonic 220gr Sierra MatchKing – 160 Round Bucket

  1. Austin Breakfield (verified owner)

    Phenomenal ammo from a phenomenal company keeping the 300 Blackout ammo rolling out during the ammo shortage. Ammo runs supper smooth and quiet through my MCX Rattler Canebrake suppressed. This ammo outperforms any other 300 Blackout ammo I have ran. Keep up the high quality work!

  2. Blaine R Pitcher (verified owner)

    Top notch always. Just wish they would build me a 308. I will purchase it immediately. Thank you Gorilla your my 300 blk go-to!

  3. Dave

    300 Blackout are Great rounds just like all your other Ammo and Gorilla has Great service to go with it
    Thanks Gorilla

  4. Jay Jay (verified owner)

    Delivery was Excellent as Usual!! I have not used these yet but they should be Great!! Not worried at all!!

  5. JR (verified owner)

    Ammo came quickly and looks uniform. Thank you Gorilla!

  6. Ray (verified owner)

    With a suppressor, it’s amazing how quiet this is! I love this ammo. Keep up the good work!

  7. Madison Hunter (verified owner)

    I love this ammo…shooting it out of my Ruger 300 Blackout is very quiet. Fast shipment and great product makes it even better.

  8. Christopher Miller (verified owner)

    Great subs for 300 BO. Accurate and Quiet through Dead Air Nomad.

  9. Greg Smith (verified owner)

    Great subsonic 300 blackout rounds. Cycled well and accurate to the 50 yards tested.

  10. Steven Hughes (verified owner)

    Timely delivery. The bucket was smaller than I expected but it had 176 rounds and everyone in the house wants it when I’m finished with it.

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Gorilla 300 AAC BlackOut Subsonic, 220gr Sierra MatchKing – 160 Round Bucket

Gorilla Ammunition 300 AAC BlackOut Subsonic features great accuracy and knockdown power from the 220gr Sierra MatchKing Bullet and is much quieter than your standard supersonic ammo.
300 AAC BlackOut is growing in popularity due to it’s increased range capabilities over 223 REM / 5.56 NATO. Increased maximum effective range with Super Sonic ammunition and incredible sound signature reductions with SubSonic ammunition make 300 BlackOut an awesome alternative to the 223 REM cartridge.

Gorilla Ammunition utilizes only the highest quality components to manufacture top quality match grade loads and this offering chambered in 300 AAC BlackOut with the 220gr Sierra MatchKing is no exception. Component selection is only the start to our top quality ammunition, the Gorilla Ammunition manufacturing process ensures consistency by pairing high end linear loading equipment with multi stage in-process inspections by highly trained machine operators with a final inspection of each and every round by our quality inspectors to ensure only ammunition that meets our rigorous specifications makes it into the box. Sierra MatchKing bullets have set an incredible number of new national records. This projectile is well known for it’s excellent accuracy. Even with it’s pinpoint accuracy, we don’t recommend hunting with MatchKing bullets. Please note: The reduced pressures associated with subsonic ammunition can affect the proper cycling of gas operated firearms. Subsonic ammunition is best used with a suppressor. Suppressors create more back pressure and help achieve full cycling of the gas operated system.

Technical Specifications:

  • Caliber: 300 AAC BlackOut
  • Projectile: 220gr Sierra MatchKing
  • Muzzle Velocity: 1030 FPS
  • Muzzle Energy: 518 ft/lbs

Small Arms Ammunition purchasing disclaimer: You must be 21 or older to purchase rifle ammunition. All ammunition is shipped via UPS ground. Always ensure you use the correct ammunition in a firearm in good working condition. It is the responsibility of the consumer to know and comply with State & local laws regarding the purchase and possession of ammunition. Please check your local laws before purchasing.

Click here to browse our selection of .300 Blackout Ammo.


Additional information

Weight 8.0 lbs