7mm Super Magnum Mashburn (P.O. Ackley Data) Load Data

12 published 7mm Super Magnum Mashburn (P.O. Ackley Data) reloading recipes across 2 powders, with bullet weights from 139 to 175 grains and recorded velocities between 2,950 and 3,550 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
2
Bullet makers
0
Bullet weights
139–175 gr

Sample 7mm Super Magnum Mashburn (P.O. Ackley Data) loads

The first 5 of 12 recipes.

BulletPowderChargeVelocityCOALPrimer
139grIMR IMR-435072.0 gr3,500 fps——
139grIMR IMR-435070.0 gr3,375 fps——
139grIMR IMR-483173.0 gr3,395 fps——
139grIMR IMR-483175.0 gr3,550 fps——
160grIMR IMR-435068.0 gr3,165 fps——

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