I use a redding comp. die. The big think i like about it is that you don't have to play around with a skrew to find the right seating dept when switching from different bullets. Also, the redding die surrounds the case better than most others so the bullets goes in the case perfect. I'm not sure if this makes much of a difference, but many people have told me so. I have also worked with RCBS dies and they seem to work fine. I only use one type of bullet in my 22-250 and it shoots great. and like you said, the lee's dont have a locking ring which really sucks, so i quit using them.
