Gorilla Silverback, 300 BLK 205gr, Self Defense & Hunting Subsonic Ammunition – 20 Round Box 


This product is limited to 5 boxes per customer and shipping address.  

(33 customer reviews)

Out of stock

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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.  

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33 reviews for Gorilla Silverback, 300 BLK 205gr, Self Defense & Hunting Subsonic Ammunition – 20 Round Box 

  1. R.Rheude (verified owner)

    I’m generally very pleased with the products Gorilla offers including this round. Their products are not cheap or inexpensive. However, you really do get what you pay for. Gorilla consistently delivers quality products that I can rely on. I’ve never had a misfire that I can even remotely attribute to their ammo…ever. They just work very well. This Self Defense round is also very much within the technical specifications I desire and in fact, need. I’ve not found a comparable product in the market place.

  2. Daniel Bingham (verified owner)

    Fed perfectly out of my primary weapons systems 300blk using 300blk magazines, and through my DD wave . Looking forward to trying it on some hogs and a white tail this season.

  3. Steve Haar (verified owner)

    A Veteran brother of mine insisted i get a box “just to try” , shot a few rounds down range out of my PSA 10.5 pistol i built , dont think ive been as impressed since i got VMAX rounds ..great f’ing round gents

  4. Shawn Kleinstiver (verified owner)

    I have ten 300 BLK short barrel suppressed weapons. They can be extremely finicky. This is the only Ammo that cycles and shoots straight every single time. I have tried every round out there and this stuff is the BomB ! ! !

  5. Fred L Blank (verified owner)

    Order was filled out perfectly, love the Silverback 300 blk 205 Gr.Sub. Love the nickle plated brass, smooooth & more corrosion resistant. Gorilla ammo is my go to mfg. for ammo, they are outstanding & keep trying harder to excel !!

  6. Brandon Skidmore (verified owner)

    I recently order some 300blk out silverback 205gr and some 223 62gr controlled chaos. I got it today and i couldn’t be more happy/impressed with your products. I can definitely tell this is some of the utmost top tier ammo. In addition the packaging is very, very nice. They are boxes i plan on keeping, not to mention the clam shell they come with. Just wanted to let you guys know and thank you for fast shipping. Hope you all had a great 4th and thanks again y’all take it easy!
    P.S i will definitely be buying more from you soon.

  7. KB (verified owner)

    Bought 1 box for trial and found them to shoot very accurately at the range. The most consistent subsonic round I have ever shot. Ordered more as soon as I returned home.

  8. Adam Konrade (verified owner)

    Highly impressed! I’ve never seen a subsonic round perform this well before. Started off buying two boxes to test and review and came back for more. I’ve posted a video review of this ammo on my YouTube channel link below. Well worth the money, I couldn’t be more happy with it! https://youtu.be/pxg3n58IPLE

  9. Jeff Baker (verified owner)

    I am going to echo the previous review. This sub-sonic round is perfect for the under 100 yard shots and you don’t want leave much of an audio footprint. It is accurate enough for neck and head shots and has the horse power to take the whitetail down with one shot. I had 3 kills last season and each deer dropped right where they stood.The round cycles flawlessly as well. It is a little expensive, but I think it is well worth the cost for the instant death blow it delivers on a regular basis.

  10. Ryan Terrett (verified owner)

    I’m a hog hunter and have have my fair share of hogs that got away even after a solid vital organ shot. I changed 2 things, my ammo and my aim. I take head and neck shots only and use Gorilla’s Silverback expanding ammo. Even my slow moving, subsonic 300 Blackout ammo has taken down every hog I’ve shot with only 1 good shot. Generally subsonic ammo is not a good hog round but I am in a residential area and have to use it. Gorilla has worked great. No cycling issues with my AR either.
    Ryan T

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Gorilla Silverback, 300 BLK 205gr, Self Defense & Hunting Subsonic Ammunition – 20 Round Box 

This 300 Blackout Load features our patent pending CNC Swiss Turned solid copper projectile and factory new brass case. This 205gr Lead Free CNC Lathe Turned Solid Copper projectile is designed, precisely manufactured and finely tuned for maximum expansion at subsonic speed. Long gone are the days of tracking game for hours after what you thought was the perfectly placed shot. The Silverback 205gr Subsonic 300 BLK opens up fast in soft tissue and creates incredible wound cavity that make game lay down upon impact. This cartridge is no longer loaded in nickel cases. These projectiles are precisely CNC Swiss Lathe Turned and feature a unique patent pending design. Our Silverback ammunition line creates devastating temporary and permanent wound cavities which are created by the aforementioned solid copper projectiles. The unique design of the projectiles expands quickly and with insane precision. As you probably guessed the Silverback line of ammunition is manufactured with the same incredibly precise loading and inspection process that results in consistency and accuracy unparalleled in the industry. Our ballisticians have tuned this 300 BLK load to preform well in today’s most popular firearms. If you need subsonic ammo that performs, this is it. 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 BLK Self Defense
  • Projectile: 205gr Gorilla Silverback Solid Copper Hollow Point
  • Muzzle Velocity: 1040 FPS
  • Ballistic Coefficient: .42 (G1)

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