Reloaded both rifle and pistol many moons ago and trying to get started again. I am planning on neck sizing my own fired brass every other firing maybe 2 of 3. My problem is I don't know the language any more. What is the difference between " 260 Remington Type S Match bushing neck size set" and a "260 Remington Competitor Bush Neck Die Set". I don't want to assume the word Competitor means more accurate.