Phantom Defense 8.6 Blackout 300gr Sierra Match King HPBT Subsonic Rifle Ammo - 20 Rounds
$44.99 ($2.25/round)
Due to various state and local laws and regulations, Sportsman's Warehouse does not ship ammunition to CT, DC, HI, IL, MA, and NJ. Ammunition orders to Alaska, California and New York may only be shipped to a Sportsman's Warehouse store for pick up by the actual purchasing consumer. You must be 18 or older to purchase long gun ammunition and 21 or older to purchase handgun ammunition. Ammunition may only be shipped via Ground. You are responsible for complying with federal, state and local laws.
Strikethrough pricing on clearance products represents the last regular price the product was offered at before being classified as clearance (not intended to return to our product portfolio in the foreseeable future). A discounted price will remain on clearance products until the product is sold out or otherwise liquidated.
$44.99
Overview
Phantom Defense 8.6 Blackout 300gr Sierra Match King HPBT Subsonic Rifle Ammo - 20 Rounds - 8.6 Blackout 300 gr subsonic Sierra Match King Hollow Point Boat Tail rounds in new Starline brass. This round is in our product lineup in an effort to bring you 8.6 Blackout ammo at an economical price point. The 8.6 Blackout (8.6 BLK) is the next evolution in high-performance ammunition, designed by Kevin Brittingham and his team at Q LLC. Building on the success of the .300 Blackout, the 8.6 BLK was developed to provide superior energy, range, and versatility, especially for AR-10 platforms. This groundbreaking cartridge applies the design principles of the .300 BLK to a larger, .338-caliber bullet, offering dramatically enhanced performance while maintaining compatibility with .308-sized platforms. A simple barrel swap is all that’s required to convert AR-10s and .308 Winchester bolt guns to 8.6 BLK, making the transition seamless. What sets the 8.6 BLK apart is its ability to fire a wide range of bullet weights, from 160 to 210 grains at supersonic speeds, and 280 to 350 grains at subsonic velocities. The cartridge excels in short-barrel rifles and is highly effective in suppressed applications, making it ideal for hunters and tactical shooters alike. The supersonic rounds deliver up to 2,400 feet per second and impressive energy transfer, while the heavy subsonic bullets deliver tremendous stopping power, with energy exceeding 830 ft-lbs.
Specifications
| Cartridge | 8.6 Blackout |
|---|---|
| Bullet Type | Hollow Point Boat Tail |
| Grains | 300 |
| Model | 15010 |
| Cartridge Case | Brass |
| Muzzle Velocity | 1050 FPS |
| Muzzle Energy | 735 FT LBS |
| Pack Quantity | 20 |
| Use | Hunting |
| Type | Centerfire |

CUSTOMER GALLERY