I have a set of LEE dies for the 43 Spanish cartridge. I am having trouble forcing the expanding button into and out of the casings after firing, as the angle on the expander button is so steep. None of my other make dies have expander buttons shaped like this. They are more like a football shape and are easily pushed and pulled through a casing. The LEE expander button is also very rough, displaying the machining marks on the circumference of the sloped ends. So, does anybody have suggestions on out to "fix" this problem? More taper? Polishing it? And how to perform an operation like this?