⚠ MAX LOAD — Verify before loading
.300 Winchester Magnum — 190.00gr Sierra Reloading Data
Posted by
imported_data
on Aug. 12, 2026
190.00gr
Bullet Weight
Sierra
Bullet Brand
Match
Bullet Type
62.40gr
Powder Charge
Powder
Powder Brand
2907 fps
Muzzle Velocity
3.3400"
OAL
Jagemann
Case
62234 PSI
Pressure
Shooter Notes
Reference data — imported 2026-08-12.
Projectile: 190 GR. SIERRA MK. Case: Jagemann.
Starting load: 58.0gr @ 2,774fps | Max load: 62.4gr @ 2907fps / 62,234 PSI.
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