I know i'm new here but I use RCBS...I have a rock chucker and 2 4x4s. Some of the people I shoot with use the Dillons. The dillons do reload rounds faster but the RCBS makes better reloads.... I think. I have seen a number of squb rounds come from dillons..... maybe they load to fast....
Just my 2 cents worth
Just my 2 cents worth