Winchester USA .223 Remington 55gr FMJ Ammo Ballistics
Brass Case • FMJ • MPN: USA223R1
Winchester USA .223 Remington 55gr FMJ Ammo Ballistics
Brass Case • FMJ • MPN: USA223R1
Trajectory @ 100yd Zero
| Range | Velocity | Energy | Drop |
|---|---|---|---|
| Muzzle | 3240 fps | 1282 ft-lb | — |
| 25 yds | 3139 fps | 1204 ft-lb | -0.8" |
| 50 yds | 3042 fps | 1130 ft-lb | -0.3" |
| 75 yds | 2947 fps | 1061 ft-lb | -0.0" |
| 100 yds ⊕ | 2854 fps | 995 ft-lb | +0.0" |
| 125 yds | 2763 fps | 932 ft-lb | -0.2" |
| 150 yds | 2674 fps | 873 ft-lb | -0.8" |
| 175 yds | 2587 fps | 817 ft-lb | -1.6" |
| 200 yds | 2501 fps | 764 ft-lb | -2.8" |
| 225 yds | 2417 fps | 713 ft-lb | -4.3" |
| 250 yds | 2334 fps | 665 ft-lb | -6.2" |
| 275 yds | 2253 fps | 620 ft-lb | -8.5" |
| 300 yds | 2174 fps | 577 ft-lb | -11.2" |
| 325 yds | 2096 fps | 536 ft-lb | -14.3" |
| 350 yds | 2020 fps | 498 ft-lb | -18.0" |
| 375 yds | 1945 fps | 462 ft-lb | -22.2" |
| 400 yds | 1872 fps | 428 ft-lb | -27.0" |
| 425 yds | 1801 fps | 396 ft-lb | -32.4" |
| 450 yds | 1732 fps | 366 ft-lb | -38.4" |
| 475 yds | 1665 fps | 339 ft-lb | -45.2" |
| 500 yds | 1601 fps | 313 ft-lb | -52.8" |
Product Overview
Winchester USA "White Box" 55gr FMJ is one of the original bulk range loads for .223 Remington. Winchester has been loading this cartridge for decades, and the white packaging is instantly recognizable at any gun counter. At 3,240 fps with 1,282 ft-lbs of muzzle energy, it matches the standard M193 ballistic profile that AR-15 barrels are designed around. The 0.255 G1 ballistic coefficient sits right between Federal AE and Hornady Frontier, giving it a middle-of-the-road trajectory that most shooters will find perfectly adequate for training.
Range sessions and firearms training courses account for most White Box consumption. The flat-base FMJ bullet feeds cleanly in AR-15s, Ruger Mini-14s, and bolt rifles chambered in .223. Winchester's brass is well-regarded by reloaders for consistent wall thickness and primer pocket dimensions. Shooters who want to develop their own loads later can collect and resize this brass without sorting by headstamp.
White Box also fills the role of a stockpile round for shooters who keep a supply on hand. The brass case and sealed primers give it long shelf life when stored properly. It runs clean enough for extended range sessions without excessive fouling buildup. Like all FMJ loads at this weight, it is for target and training use only and should not be used for hunting or home defense.
- Decades of proven reliability across AR-15 and bolt-action platforms
- Brass is excellent for reloading with consistent dimensions
- Competitive pricing, especially in bulk packs
- Long shelf life with sealed primers
- Flat-base bullet has slightly worse long-range performance than boat-tail options
- Some shooters report wider velocity spreads compared to Federal AE
- No expansion capability limits it to range-only use
- Accuracy is typically 2-3 MOA from semi-auto rifles
All Winchester USA .223 Remington 55gr FMJ Ammo Prices
| DEALER | QTY | PRICE | SHIPPING | TOTAL | PRICE/RD |
|---|---|---|---|---|---|
| Lucky Gunner | 20 | $14.00 | $18.43 | $32.43 | $1.62 |