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The Remington UMC .223 Remington line has been a go-to for range sessions and training for decades. This 55 grain FMJ load is built for function and value, not frills. You get a consistent performer that feeds reliably across the most common .223 rifles out there.
With a muzzle velocity of 3,240 feet per second and muzzle energy of 1,282 foot-pounds, this is straightforward, predictable ammunition. The full metal jacket design means zero expansion, which is why it's ideal for range work and practice. Real-world shooters report that the UMC line shoots accurately enough out to 300-400 yards with proper optics and solid fundamentals. It's not match-grade ammo, but it puts rounds downrange consistently without the drama or the cost.
Each round sits in reloadable brass cases with non-corrosive Boxer primers. If you're into handloading, that's money back in your pocket. If you're not reloading yet, these cases have resale value. The Boxer primer system is industry standard and dead reliable. Clean-burning, no corrosive residue to worry about afterward.
This 55 grain weight is the original M16 spec, and it runs smooth in virtually every 1:7 through 1:12 twist barrel you'll encounter. Whether you're running an AR-15, a bolt gun, or anything in between, the round just works. The load is comfortable to shoot, mild recoil, and doesn't beat you up on a long range day. Plenty of modern ammunition purists prefer heavier bullets, but 55 grain FMJ remains the workhorse for a reason.
Yes, absolutely. The 55 grain FMJ is the original military spec and runs smoothly in virtually every AR-15 and other .223/5.56 rifle. Standard barrel twists from 1:7 to 1:12 all handle this weight without issues. Make sure your rifle is chambered in either .223 Remington or 5.56 NATO.
Yes. Each round comes in reloadable brass cases with non-corrosive Boxer primers, so the cases and primers are both suitable for reloading. This makes the UMC 55gr a practical choice if you handload, since you can recycle the brass and reduce your long-term ammunition costs.
The 55 grain FMJ will shoot accurately out to 300-400 yards with decent optics and proper technique. Beyond that, wind drift becomes more of a factor due to the bullet's lighter weight. For closer work inside 300 yards, it's plenty effective, and that's where most range sessions happen anyway.
UMC sits solidly in the middle of the road. It's not the cheapest ammo out there, but it's also not premium match-grade pricing. You're getting reliable Remington quality with predictable performance, which is why it's stayed popular for training and practice for so long. If you need accuracy at 100 yards or less, you'll be satisfied.
| Bullet Weight (Grains) | 55 |
|---|---|
| Caliber/Gauge | .223 REM/5.56 NATO |
| Case Material | Brass |
| Cost per Round | 0.63 |
| Grains | 55 gr |
| Manufacturer | |
| Manufacturer Part Number | 23683 |
| Shipping Weight | 5.8 |
| Units per Box | 200 |
| UPC | 047700398105 |
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