⚠ MAX LOAD — Verify before loading
5.56 mm Nato — 77.00gr Sierra Reloading Data
Posted by
imported_data
on Aug. 12, 2026
77.00gr
Bullet Weight
Sierra
Bullet Brand
Match
Bullet Type
23.60gr
Powder Charge
Powder
Powder Brand
2783 fps
Muzzle Velocity
2.2600"
OAL
WCC
Case
Shooter Notes
Reference data — imported 2026-08-12.
Projectile: 77 GR. SIERRA MK. Case: WCC.
Starting load: 19.0gr @ 2,413fps | Max load: 23.6gr @ 2783fps.
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