7mm Super Magnum Mashburn (28-Inch Barrel) Load Data

18 published 7mm Super Magnum Mashburn (28-Inch Barrel) reloading recipes across 5 powders and 1 bullet manufacturers, with bullet weights from 140 to 175 grains and recorded velocities between 3,058 and 3,455 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
18
Powders
5
Bullet makers
1
Bullet weights
140–175 gr

Sample 7mm Super Magnum Mashburn (28-Inch Barrel) loads

The first 5 of 18 recipes.

BulletPowderChargeVelocityCOALPrimer
Nosler Partition 140grHodgdon H-483175 gr3,383 fps——
Nosler Partition 140grIMR IMR-435068 gr3,373 fps——
Nosler Partition 140grIMR IMR-483171 gr3,419 fps——
Nosler Partition 140grIMR IMR-782876 gr3,455 fps——
Nosler Partition 150grHodgdon H-483174 gr3,311 fps——

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