Hello everybody, I´ve just bought the redding competition dies but I havent decided yet which bushing I should buy. I read redding recommendation that you have to measure neck diameter of a loaded cartridge and sustract 1 thou but my big problem is, where do I have to do the measurement? at the top of the neck or where the shoulder starts? I ask this because I found very different values ( from .328 to .334 more or less) from one to the other. Did I mention that I want to use my dies on remington cases? Thank you!!