DoubleG I noticed you joined www.benchrestcentral
that site is full of benchrest shooters willing to help. In your post you mentioned that some of your bullets are seating with more friction that others. One way to eliminate that is to buy a redding full length bushing neck die, With this die you can select the bushing that will match the diameter of your loaded rounds, The bushing that you should start with would be .002 less than the outside diameter of one of your loaded rounds. The die is a full length bushing die but, when you adjust the the die in your press you can use it to neck size only. When you need to full length resize you can just adjust the die closer to your shellholder.