I have a Dillion set up for small primers. The 38special shellplate is smooth through indexing but when I switch over to 40sw it "binds" up frequently and is not as smooth moving from station to station. I have to apply a lot more force to index.
The shellplate looks free of any burrs, I tried loosening the center screw but it only helps some of the time. I have also tried applying a little oil between the plate and the press. All this doesn't seem to help.
Anything else I should try????