.41 Magnum / .41 Remington Magnum (in an S&W Model 657) Load Data

12 published .41 Magnum / .41 Remington Magnum (in an S&W Model 657) reloading recipes across 8 powders and 4 bullet manufacturers, with bullet weights from 170 to 255 grains and recorded velocities between 795 and 1,447 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
12
Powders
8
Bullet makers
4
Bullet weights
170–255 gr

Sample .41 Magnum / .41 Remington Magnum (in an S&W Model 657) loads

The first 5 of 12 recipes.

BulletPowderChargeVelocityCOALPrimer
Sierra JHP 170grHodgdon H-11025.5 gr1,447 fps——
Speer JHP-SWC 200grHodgdon H-11022.0 gr1,262 fps——
Hornady XTP-HP 210grHodgdon H-11022.5 gr1,288 fps——
Hornady XTP-HP 210grHodgdon Lil'Gun22.5 gr1,321 fps——
RCBS 41-SWC cast 210grAlliant Red Dot5.5 gr923 fps——

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