Dusty Stevens
Shiner
65-70 Grains of N170 is my go to for heavier bullets.
The new 565 looks interesting in its own regard.
As for a powder to be Anti copper fouling????
For even stating such there better be some proof of it.
And not because the bottle says so.
According to the mfgs just about every powder created is also temperature stable so....
Just ignore the anti copper thing. Powder isnt part of the equation on copper deposits in barrels