Remington UMC ammunition (part no. 24026) loads 300 AAC Blackout with a heavy 220 grain Open Tip Flat Base bullet at 940 feet per second, a subsonic specification well suited to suppressed AR-platform rifles. Remington builds UMC centerfire rifle ammunition for varmint hunting, target shooting, training, and any other high-volume shooting situation, offering great value with no compromise in quality or performance. Loaded right here in the USA over a brass case, this heavy-for-caliber loading gives 300 Blackout shooters a dependable subsonic option without the premium price tag of a specialty defensive round.

Key Specifications

• Chambered in .300 AAC Blackout, a popular AR-15 platform cartridge.
• Bullet weight is a heavy 220 grains, well above standard supersonic 300 Blackout loadings.
• Bullet design is Open Tip Flat Base, a non-expanding profile built for reliable feeding.
• Cases are brass, giving consistent ignition and easy reloading for handloaders.
• Rated at 940 feet per second, keeping the round subsonic and suppressor-friendly.
• Packed 50 rounds per box, a standard rifle-ammo box count.
• Runs about $1.44 per round at the box price.
• Loaded right here in the USA with no compromise in quality or performance.
• Suited to varmint hunting, target shooting, training, and high-volume shooting alike.

Frequently Asked Questions

Is this a subsonic load? Yes, at 940 feet per second it stays below the speed of sound, making it a suppressor-friendly choice for a 300 Blackout rifle.

Does the OTFB bullet expand? No, the Open Tip Flat Base is a non-expanding profile built for reliable feeding rather than terminal expansion.

How many rounds come in a box? This listing is a 50-round box, a standard rifle-ammo quantity.

Buy the Remington UMC 300 Blackout 220gr OTFB Rifle Ammunition

Feed your suppressed 300 Blackout rifle with a dependable, heavy subsonic load. Browse more rifle ammunition in our lineup. Order from our Lubbock, Texas gun shop and it ships fast to your door.