Description
Remington UMC has been a range staple for good reason. This .223 load hits that sweet spot where you get dependable performance without overthinking things. The 55-grain full metal jacket bullet is the classic .223 configuration that works across nearly all rifle platforms, and the 3240 feet per second velocity gives you straightforward ballistics for target work and training.
What Makes This UMC Load Work
The ammo comes loaded in fresh brass cases with non-corrosive primers, which means you get reloadable brass if you're into handloading down the road. Remington manufactures these rounds at their facility in Lonoke, Arkansas, so you're getting American-made ammunition from a company with serious production experience. The combination of clean-shooting primers and standard brass quality keeps things moving at the range without excessive fouling.
Accuracy and Performance in the Field
For typical range distances out to 300 yards, this load performs exactly as it should. Users consistently report acceptable accuracy for training and steel work, with groups tightening up nicely from quality ARs. The ballistic coefficient of .202 and predictable velocity make it straightforward to dial in your zero and stick with it. If you find a lot that shoots well through your rifle, the smart move is grabbing more of that same lot number to minimize variables in your training.
Built for High-Volume Shooting
UMC ammunition was designed for people who run through ammo regularly. The pricing stays reasonable because Remington streamlines production into a focused lineup of popular calibers, and that manufacturing efficiency translates directly to your wallet. Whether you're breaking in a new rifle, running drills, or just spending time behind the trigger, this round handles the workload without drama.
Key Specifications
- Caliber: .223 Remington / 5.56 NATO
- Bullet Weight: 55 grains
- Bullet Type: Full Metal Jacket (FMJ)
- Muzzle Velocity: 3240 feet per second
- Muzzle Energy: 1282 foot-pounds
- Ballistic Coefficient: .202
- Case Material: Brass (reloadable)
- Primer Type: Non-corrosive
- Rounds per Box: 20
- Manufacturer: Remington
- Model: UMC
- Manufacturer Part Number: 23711
- UPC: 047700067001
What’s Included
- 20 rounds of .223 Remington ammunition
Frequently Asked Questions
Is Remington UMC .223 ammo accurate enough for training?
Yes. This 55-grain load performs well for training and range work out to 300 yards. Users typically report acceptable accuracy suitable for running drills and steel work from standard AR-15 rifles. It's designed to deliver consistent performance at a practical price point, not premium match-grade accuracy.
Can I reload the brass from this ammunition?
Yes. UMC loads come in reloadable brass cases with non-corrosive primers. Once you've shot through them, the brass is good to go for handloaders. This makes the ammunition even more economical for high-volume training over time.
Will .223 Remington work in a 5.56 NATO chamber?
Yes. .223 Remington ammo is safe to fire in rifles chambered for 5.56 NATO or marked as .223/5.56. The pressure specs are compatible. However, factory 5.56 ammo should not be fired in a .223-only chamber due to higher pressures.
What twist rates work best with 55-grain .223 ammo?
The 55-grain projectile performs well with 1/7, 1/8, and 1/9 inch twist rates, which are the most common twist specifications in AR-15s and other modern .223 rifles. While it may function in other twist rates, performance can be affected.








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