One may be as good as the other, and perhaps the Hornady set I have is a poor set but I've found a definate difference compared with the RCBS set I've recently purchased. The Hornady set, with the sleeved seater tube, appear very similar to a set of Bonanza bench rest dies I have for 7x57 Mauser. Emphesis on appear because that's where the similarity ends.prosper said:Dies are dies. They're pretty much all the same in my experience. Though I do like the sleeved Hornady seater die, this is the same concept as the benchrest seaters (minus the micrometer)