⚠ MAX LOAD — Verify before loading

5.56 mm Nato — 55.00gr Reloading Data

Posted by imported_data on Aug. 12, 2026
55.00gr Bullet Weight
Bullet Brand
Full Metal Jacket (FMJ) Bullet Type
20.70gr Powder Charge
Powder
Powder Brand
3191 fps Muzzle Velocity
2.2450" OAL
FIO Case
Shooter Notes

Reference data — imported 2026-08-12.
Projectile: 55 GR. WIN FMJ. Case: FIO.
Starting load: 17.0gr @ 2,770fps | Max load: 20.7gr @ 3191fps.

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Cartridge
5.56 mm Nato
Rifle · Factory