⚠ MAX LOAD — Verify before loading
5.56 mm Nato — 55.00gr MSSS Reloading Data
Posted by
imported_data
on Aug. 12, 2026
55.00gr
Bullet Weight
MSSS
Bullet Brand
Boat Tail (BT)
Bullet Type
26.30gr
Powder Charge
Powder
Powder Brand
3425 fps
Muzzle Velocity
2.2100"
OAL
WCC
Case
Shooter Notes
Reference data — imported 2026-08-12.
Projectile: 55 GR. MSSS SPBT. Case: WCC.
Starting load: 18.0gr @ 2,488fps | Max load: 26.3gr @ 3425fps.
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