Powder for 175 gr Sierra Gameking 7mm mag

[std7mag]

From what i've heard, the 100 class of their powders are the single base, while the 500s are double base.
More energy from the 500s giving more velocity.
But...
The 100s give better barrel life. They aren't as hard on the throat area.

Speeds for the N170 are still respectable with the 175gr bullet. I'd definitely put it in the "to try" list.

 

[morgaj1]

I find RL22 to be magic for accuracy in magnums and .270. However, it is too temperature sensitive to me. I have been using RL23 instead and have been pleased.