Home Forums Reloading Big Game Rifles 7mm Mashburn and IMR7977

Hodgdon has 7977 between H1000 and MagPro on their burn rate chart. Enduron powders are reportedly fairly temp stable, maybe not as good as Extreme Aussie powder.

7977 should work well in the Mashburn, H1000 and RL-25 are good in the 7RM with heavier bullets.

DF