300 Win. Mag. Load Data

154 published 300 Win. Mag. reloading recipes across 10 powders and 20 bullet manufacturers, with bullet weights from 123.456 to 240 grains and recorded velocities between 1,774.913 and 3,592.476 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
154
Powders
10
Bullet makers
20
Bullet weights
123.456–240 gr

Sample 300 Win. Mag. loads

The first 5 of 154 recipes.

BulletPowderChargeVelocityCOALPrimer
Sax KJG-SR 123.456grReload Swiss RS6072.3162264–74.538492 gr3487.4904–3592.476 fps3.311LRM RWS 5333
IBEX VIPER 135grReload Swiss RS7083 gr3520 fps3.500LR-M Fed 215 GM
LOS Hunter Tactic 140grReload Swiss RS6076 gr3517 fps3.339LR-M Fed 215
Sologne GPA 148grReload Swiss RS5263.3 gr3035 fps3.209LR-M CCI 250
Nosler Partition 30 Caliber 150grNorma Norma 203-B38–39.3 gr2585.0–2703 fps——

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