
Federal XM193BK NATO 5.56x45mm 55 grain FMJBT. 250 round battle Pack. This ammo was loaded by Federal for the U.S. Government to NATO specifications.Comes in reloadable brass cases. Please note: This is military ammunition that may be loaded to higher pressures than SAAMI specifications for 223 Remington.
Technical Information
Muzzle Velocity: 3240 fps
Muzzle Energy: 1282 ft. lbs.
Note: While, .223 and 5.56 x 45 ammo are interchangeable, the 5.56 may be loaded at higher pressures than .223. SAAMI warns not to use 5.56 ammo in sporter 223 rifles.
• CALIBER: 5.56 mm, manufactured at the Lake City Army Ammunition Plant (LCAAP)
• CASE: Brass (Copper Alloy No. 260)
• BULLET: 55 gr. FMJ Boat-Tail
• PRIMER: M41 Operating Range: (-40 degrees to +125 degrees F)
• PRIMER SEALANT: Water resistant lacquer
• CASE MOUTH SEALANT: Yes
• ACCURACY: 3-10 round groups not to exceed 2.00" mean radius maximum average at 200 yards
• INSTRUMENTAL VELOCITY: 3165 +/- 40 FPS (78 feet from muzzle) using a 5.56 test barrel, 20" long
• ENERGY: 1223 Ft-Lbs. at 78’
• CHAMBER PRESSURE: Piezotronic maximum average per 10 rounds - 55000 PSI in 5.56 test barrel (case mouth location)
• VISUAL INSPECTION: 100% visual inspection of finished cartridges prior to packaging
• WARNING: For use in standard 5.56 mm chambers. Do not use in non-standard 5.56 chambers.
• PACKAGING: 250 Round Battle Pack

| Finish | Brass Case |
|---|---|
| Manufacturer | Federal |
| Manufacturer # | FEDXM193BK-250 |
| Product # | XM193BK250 |
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