Gorilla Ammunition .300 AAC BlackOut 125gr Sierra MatchKing – 20 Round Box


(8 customer reviews)
Locations we cannot ship to: HI, AK, MA, WASHINGTON DC, IL Cities: Bensenville, Chicago, Chicago Heights, Cicero, Evanston, Norride, Orlando Park, Schaumburg, Thornton, IL County: Cook County, Maryland Cities: Annapolis, Friendship Heights, Takoma Park NY Cities: New York City, Buffalo, Rochester. We are able to ship to the rest of New York through FFL, CA: Ship to FFL ONLY, RI: Beginning January 1, 2023, a person may only purchase ammunition if they are 21 years or older and have a valid pistol/revolver safety certificate or a Rhode Island hunter education course card issued by the Department of Environmental Management.

In stock

Purchase this product now and earn 33 Points!

*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.  

300 AAC BlackOut, 125gr Sierra MatchKing – 20 Round Box

Gorilla Ammunition features great accuracy and knockdown power from the 125gr Sierra MatchKing. 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. Sierra MatchKing bullets have set an incredible number of new national records.  This projectile is well known for it’s excellent accuracy. 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 125gr Sierra MatchKing is no exception. Factory new cases, match grade primers and top quality projectiles make this load a go to choice for competition or home defense. 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.

Technical Specifications:

  • Caliber: 300 AAC BlackOut
  • Projectile: 125gr Sierra MatchKing
  • Muzzle Velocity: 2160 FPS
  • Muzzle Energy: 1294 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 1.1 lbs

8 reviews for Gorilla Ammunition .300 AAC BlackOut 125gr Sierra MatchKing – 20 Round Box

  1. RMJ (verified owner)

    Good ammo but heed what they say about the primers. I bought two boxes of the 125 SMK loads and all but three had light strikes. It was in a bolt action platform so I don’t fault Gorilla. Good news is I saved the SMK 125’ers and reloaded them, plus I kept the brass! Call them if you are running a bolt gun!

  2. John Cook (verified owner)

    Very happy with these. Consistently stacked rounds on top of one another out of my 9” AR pistol @ 50 yards.

  3. E (verified owner)

    Have not tested the items purchased. However, I did place 2 different orders at different times, they shipped same day order placed and received in 3-4 days. Great service getting orders processed and out the door.

  4. Johnathan

    Best ammo out of all the brands I’ve tried during the great ammo shortage of 2016-2020s. I’ve had jams, hangs, popcorns, and other horrible things happens with other brands, even well known brands that were more expensive. Gorilla was the best.

  5. Henry Moffitt (verified owner)

    NEED MORE!!!

  6. Mike Jones (verified owner)

    Arrived fast and in great condition, great packaging with excellent brass casing, haven’t sent any down range yet but will be doing so soon, will be ordering more soon. Thanx again.

  7. Richard Chavez (verified owner)

    Great Quality, packaging, and fast shipping

  8. Ryan (verified owner)

    Ammo looks fantastic! Cant wait to hit the range! Gorilla provides a great service to their customers! You have a customer for life!

Add a review

Your email address will not be published. Required fields are marked *