For small to medium bores where I'm trying to get maximum accuracy, I generally buy an inexpensive RCBS or Lee sizer to start. If there's a Forester seater available, I'll buy that - great dies. If not I'll get a cheap seater too. Then in either case I'll make some fired cases and order a micrometer bushing sizer from Whidden and a seater too if Forester doesn't make one.
I almost always use a Lee factory crimp die. I've noticed no variation in accuracy or maximum safe velocity, powder charges go down a hair (making more case space), and the mechanical robustness of the ammo goes way up compared to just a couple thousandths neck tension.
I avoid Redding seaters because I'm sick of them not hardening them and then bitching when people want to shoot compressed loads. It's not 1957, powders have gotten slower, and Redding needs to get with the times.
