Add my name to the list of those who have had amazing results with the $20 Lee Collet die. I have quite a few sets of benchrest dies - but I keep coming back to the Lee Collet for the last word in tight groups. They also are just the ticket for neck sizing the entire family of Ackley Improved calibers, since they have no real "body" taper to them and don't touch anything but the neck. I still use a Redding seat die as well as a Redding Body die to bump the shoulder back every three loadings.

I also use the Bigcountry technique for seating bullets. Slows things down quite a bit, but the results are quantifiable. One other thing I have done in the past to get real straight bullet seating is to use a shell holder one size bigger than the correct one for seating. I also turn the die down as close to the shell holder as possible without it actually making hard contact with the case. Quite a few presses have the center of the shell holder slot not perfectly aligned with the center of the die threads. And then there are variations with the actual shell holders and dies during the manufacturing process. Between the generous shellholer, the Lee Collet resizing, and the Bigcountry seating method; you get some pretty straight loaded rounds.