Atomic .300 AAC Blackout ammunition (part no. 00465-ATM) loads a 220-grain Subsonic Hollow Point Boat Tail for big-game hunters who want confirmed, repeatable terminal performance. Atomic small-batch loads its ammunition in Wisconsin using premium bullets and hand-inspected brass rather than mass-produced components. The heavy-for-caliber boat tail hollow point is tuned to expand reliably at subsonic velocity, staying below the sound barrier for a quieter report through a suppressor. Brass-cased and 50 to a box, it is built to feed reliably through bolt guns and semi-autos chambered for the cartridge. In our rifle ammunition lineup, this .300 AAC Blackout loading is a confirmed, dependable choice worth adding to the cart.

Key Specifications

• The chambering is .300 AAC Blackout, a compact, versatile cartridge that runs supersonic or subsonic loads through the same AR-15 magazine and bolt.
• The bullet weighs 220 grains, setting the balance of velocity and downrange energy this load is tuned for.
• The bullet is a Subsonic Hollow Point Boat Tail, the projectile Atomic chose to load behind .300 AAC Blackout.
• The heavy-for-caliber boat tail hollow point is tuned to expand reliably at subsonic velocity, staying below the sound barrier for a quieter report through a suppressor.
• This load is loaded to subsonic velocity, staying below the sound barrier for a quieter report, especially useful when shooting suppressed.
• Cases are Brass, holding pressure reliably and staying reloadable for handloaders.
• Each box holds 50 rounds, enough for a solid range session.
• A case ships 10 boxes (500 rounds total), ideal for stocking up or buying once for the season.
• At about $1.36 per round, the price reflects the bullet construction loaded into this round.

Frequently Asked Questions

What game is the 220-gr Subsonic Hollow Point Boat Tail suited for? With .300 AAC Blackout behind a Subsonic Hollow Point Boat Tail bullet, it is built for deer-class game and similarly sized animals within the cartridge’s normal hunting range.

How many rounds come in a case? A case ships 10 boxes of 50, 500 rounds total.

How is the Subsonic Hollow Point Boat Tail different from a standard cup-and-core bullet? The hollow point cavity is what starts the expansion process on impact; without it, the same bullet would behave much like a solid, non-expanding round.

Buy the Atomic .300 AAC Blackout 220 gr Subsonic Hollow Point Boat Tail

A load you can trust round after round is worth more than a marginal ballistic edge, and this .300 AAC Blackout loading delivers exactly that. Pick up a case and put it through its paces before you need it. Order from our Lubbock, Texas gun shop and it ships fast to your door.