OK, second ever post in 2 minutes!

Once I decide on my first double rifle caliber, who would you recommend to work up a custom load using North Fork bullets and regulate my rifle? I've heard of Superior Ammo, but would like opinions on others.

Also, for a 30-06, would you regulate for 50, 75 or 100 yards? What about for 9.3x74R?

I KNOW these are pretty rookie questions...but hey, I am a rookie! Sorry for such basic questions.