.300 Winchester Magnum (Model 70 Winchester) Load Data

43 published .300 Winchester Magnum (Model 70 Winchester) reloading recipes across 9 powders and 3 bullet manufacturers, with bullet weights from 150 to 200 grains and recorded velocities between 2,686 and 3,147 fps. Every load lists charge weight, velocity, COAL, primer and case where the source published it.

Always begin at the minimum charge weight and work up gradually. Never exceed maximum loads. Verify all data against a current published reloading manual before use. LoadDevelopment.com is not responsible for errors or omissions in this data.
Recipes
43
Powders
9
Bullet makers
3
Bullet weights
150–200 gr

Sample .300 Winchester Magnum (Model 70 Winchester) loads

The first 5 of 43 recipes.

BulletPowderChargeVelocityCOALPrimer
Nosler Ballistic Tip 150grAccurate AAC-310076.0 gr3,058 fps—Winchester Large Rifle
Nosler Ballistic Tip 150grAccurate AAC-310074.0 gr2,945 fps—Winchester Large Rifle
Nosler Ballistic Tip 150grIMR IMR-782875.0 gr2,904 fps—Winchester Large Rifle
Nosler Ballistic Tip 150grIMR IMR-782877.0 gr2,982 fps—Winchester Large Rifle
Nosler Ballistic Tip 150grAlliant RL-1974.0 gr3,055 fps—Winchester Large Rifle

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