These dies are the best out there, the finish inside, the dimensions inside, the flexibility of case mouth tension on the bushing dies, the materials used and machining. From the first time you use them you'll know why, no slop in adjustments resulting in minimum runout. In-line seating with the Forster seaters, although I prefer Vickermann seater, I have never used a Comp. in-line bullet seater from Redding but like the RCBS and the aforementioned Vickermann. It's an accuracy thing, go cheap or go quality! IMHO
If I could do it all over again, I would order Redding bushing neck dies and Vickermann seating dies for all my calibers and I'd be a happy(happier)man.
Cast bullet shooters would love the Vick. die as seating is so straight that you don't bell cases at all, giving more uniform case tension and much less run out, and your brass lasts twice as long.