Description
The Remington UMC .300 AAC Blackout 220-grain load hits the sweet spot for anyone running subsonic practice rounds or suppressed systems. You get 200 rounds of consistent, US-manufactured ammunition in a caliber that's become the go-to for quiet shooting. The 220-grain bullet weight is purpose-built for subsonic performance, traveling around 940 feet per second while delivering stable flight and minimal noise when paired with a suppressor. There's no guessing here—this is the classic heavy-bullet approach that keeps things under the sound barrier.
What Makes the Remington UMC 220-Grain Load Work
The heavier projectile handles subsonic speeds better than lighter bullets in the same caliber. Rather than fighting to stay below the sonic threshold, the 220-grain design embraces it. You'll notice smoother cycling in your rifle, less dramatic recoil impulse, and groups that stay tight at typical suppressed shooting distances. Real shooters report consistent function across AR-15s and other platforms without getting bogged down by cycling issues or velocity unpredictability.
Brass Cases Built for Reloading or Reuse
These rounds come in reloadable brass cases, so the cost-per-round story doesn't end after one firing. If you reload or plan to start, you're not throwing away cases with every trip to the range. The primer is centerfire, and the overall construction is straightforward—no exotic materials or proprietary designs that complicate things. Load them up, burn them, and reload them again.
With 200 rounds per box, the UMC bulk format gives you enough ammo for a serious range day or to stock up without breaking the budget. The ammunition is loaded right here in the United States, and Remington's track record with the 300 Blackout dates back to developing the round itself. This isn't guesswork—it's a proven load from a company that knows the platform inside and out.
Key Specifications
- Caliber: .300 AAC Blackout
- Bullet Weight: 220 Grain
- Bullet Type: Open Tip Flat Base (OTFB)
- Rounds per Box: 200
- Case Material: Brass
- Primer Type: Centerfire
- Muzzle Velocity: 940 ft/s
- Manufacturer: Remington
- Manufacturer Part Number: 20109
- UPC Code: 047700487601
- Country of Origin: United States
What’s Included
- 200 rounds of .300 AAC Blackout 220 grain ammunition
- Reloadable brass casings
- Centerfire primers
Frequently Asked Questions
Is this Remington UMC 220-grain ammo truly subsonic?
Yes. These rounds travel at approximately 940 feet per second, which keeps them below the sound barrier (around 1,125 fps). That's the whole point of the 220-grain load—designed specifically to stay subsonic reliably without velocity creep that could push rounds over the limit.
Will the Remington UMC 220-grain load work reliably in my AR-15?
It should. The subsonic nature of this round means less gas and recoil impulse, which can sometimes affect semi-auto cycling depending on your specific setup, barrel length, and gas system. Most modern AR-15s and 300 Blackout uppers handle these without issue, especially when paired with a suppressor, which adds back pressure that helps cycling.
Can I reload these brass cases?
Yes, that's one of the main advantages of this load. The brass cases are reloadable, so if you have a press and components, you can load them again. Many folks who run high volumes of subsonic ammo appreciate this aspect of the Remington UMC offering.
How does the 220-grain perform compared to lighter 300 Blackout loads?
The 220-grain is purpose-built for subsonic work with a suppressor. It delivers better momentum at lower speeds and produces tighter, more consistent groups at close range than lighter subsonic options. For longer ranges or supersonic performance, lighter bullets in the 110-125 grain range would be better suited, but this load is all about quiet, controlled shooting.





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