I need a set of 458 lott dies but am not sure which ones to buy...some of the reviews for the Hornady and RCBS sets aren't very good...anybody got any experience loading the lott with either of them?

I use Hornady dies for the .458 Lott. The set I have works fine. My groups run 1-1.5" at 100 yards with the 500 gr. Barnes TSX, which is plenty good for the shooting I have done. I made 6 one-shot kills in Zimbabwe with my handloads on a buffalo and 5 plains game animals.