Re: Any thoughs on Lyman dies?
"I'm not plinking. I'm shooting a .308 at 100 yards on paper. I'm looking for .5" 5 shot groups."
Lyman dies are on par with any other brand of conventional dies so they won't be an automatic limiting factor in that pursuit. Loader skill, and your rifle and trigger and scope and bench rigidity and bags and rest and shooting skills will be.
But, Forster or Redding BR/Comp dies WOULD make it easier. As would a Sinclair concentricity gage, a good neck turner, Lee Collet Neck sizer die, a body die, a good case trimmer & debur tool, primer pocket uniformer, flash hole debur tool, a dial or digital 6" caliper, etc. I mean, dies don't work magic; you MUST prep your cases very well to achieve that level of accuracy with a "heavy" kicker like the .308.