.577-.450 Martini Loads Load Data

11 published .577-.450 Martini Loads reloading recipes across 3 powders, with bullet weights from 360 to 520 grains and recorded velocities between 1,130 and 1,473 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
11
Powders
3
Bullet makers
0
Bullet weights
360–520 gr

Sample .577-.450 Martini Loads loads

The first 5 of 11 recipes.

BulletPowderChargeVelocityCOALPrimer
patched 360grSwiss 1 1/2 Fg86.0 gr1,473 fpsFederal 215
lubricated 360grGraf FFg100.0 gr1,454 fpsFederal 215
Lyman/Whitworth 475grSwiss 1 1/2 Fg106.0 gr1,376 fpsFederal 215
Lyman/Whitworth 475grSwiss 1 1/2 Fg86.0 gr1,352 fpsFederal 215
Lyman/Whitworth 475grWano Fg100.0 gr1,168 fpsFederal 215

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