RE: RCBS VS. LEE dies
I have only Lee dies (mainly because I'm a cheap SOB, my Grandpa called it being a thrifty Scot, but I'm cheap).
I have loaded a couple thousand 45LC with no problems except my own failure to clean them after using certain lubes (Remington cast bullets come with a flaky black lube that is a pain in the butt).
My 30-06 dies have been no problem, nor have my 8x57 Mauser.
I use the Pace setter carbide dies and haven't seen a reason to change.