DoubleTap Ammunition 300BK220MK 300Blackout 220gr Hollow Point Boat Tail 20 Per Box/50 Case
Double Tap Ammunition's 300 Blackout 220gr hollow point boat tail rounds deliver serious stopping power in a subsonic-friendly cartridge built for suppressed rifles, short-range hunting, and tactical applications. The 220-grain projectile is heavy enough to travel subsonic in most 300 Blackout barrels, minimizing supersonic crack while maximizing energy transfer downrange. This is ammunition designed by shooters who understand that heavier bullets aren't just a ballistics curiosity—they're a practical advantage when precision and terminal performance matter.
The hollow point boat tail design combines expansion and controlled penetration, making these rounds suitable for hunting medium game and home-defense scenarios where you need dependable bullet performance. Double Tap Ammunition has built a reputation among precision rifle shooters and suppressor users for quality control and consistency, and these rounds reflect that commitment. Each box contains 20 rounds, and you can order by the box or stock up with a full case of 50 boxes—ideal if you're running a suppressed 300 Blackout as a go-to rifle and want to keep your supply robust.
300 Blackout has evolved from a niche cartridge into a staple for hunters and shooters who want rifle power in a compact platform. Whether you're hunting hogs and whitetail in dense cover, running home-defense drills with a short-barreled AR, or just punching paper at the range with a suppressor attached, subsonic 300 Blackout ammunition is about versatility without compromise. Double Tap's 220-grain load gives you the ballistic behavior you need without the flash and noise signature that alerts everything in a mile radius.
Key Features
- 220-grain bullet weight optimized for subsonic velocity in 300 Blackout barrels
- Hollow point boat tail design for controlled expansion and penetration
- Packaged in convenient 20-round boxes; available by the box or full 50-box case
- Loaded by Double Tap Ammunition, a brand trusted by precision rifle shooters and suppressor users
- Suited for hunting, tactical applications, and suppressed rifle use
Specifications
| Caliber | 300 Blackout |
| Bullet Weight | 220 grains |
| Bullet Type | Hollow Point Boat Tail |
| Rounds Per Box | 20 |
| Case Quantity | 50 boxes (1,000 rounds) |
| Manufacturer | Double Tap Ammunition |
Frequently Asked Questions
Will 220-grain 300 Blackout fire subsonic in my rifle?
Yes—220 grains is the standard subsonic weight for 300 Blackout, designed to stay below 1,125 feet per second in typical 300 Blackout barrels. This reduces supersonic crack and is the go-to load for suppressed shooting and hearing-safe hunting.
What is this ammunition suitable for?
Double Tap's 300 Blackout hollow point boat tail rounds are designed for hunting medium game, home defense, tactical training, and suppressed rifle work where controlled expansion and reliable performance are priorities.
How many rounds come in each order option?
You can buy by the box (20 rounds) or order a full case containing 50 boxes, which totals 1,000 rounds—ideal for serious shooters and hunters who use 300 Blackout regularly.
Is this ammunition loaded by a reputable manufacturer?
Double Tap Ammunition is a well-known ammunition maker respected in the precision rifle and suppressor community for quality control and consistent performance.

