.45-70 Government (Trapdoor Rifles) (IMR Data) Load Data

10 published .45-70 Government (Trapdoor Rifles) (IMR Data) reloading recipes across 6 powders and 3 bullet manufacturers, with bullet weights from 300 to 405 grains and recorded velocities between 1,500 and 1,960 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
10
Powders
6
Bullet makers
3
Bullet weights
300–405 gr

Sample .45-70 Government (Trapdoor Rifles) (IMR Data) loads

The first 5 of 10 recipes.

BulletPowderChargeVelocityCOALPrimer
Nosler Partition 300grIMR IMR-303151.5 gr1,890 fps——
Hornady Hollow Point 300grIMR IMR-303154.0 gr1,960 fps——
Hornady Hollow Point 300grIMR IMR-419841.2 gr1,900 fps——
Nosler Partition 300grIMR IMR-419841.2 gr1,880 fps——
Winchester SP 405grIMR IMR-303151.4 gr1,795 fps——

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