Hey-guys;-if-I-go-with-the-7mm-WSM-I-want-to-use-the-Norma-brass.-So-is-it-easier-to-neck-up-the-270-WSM-brass-to-7mm-instead-of-using-the-Norma-300-WSM-brass.-If-I-use-the-300-WSM-Brass-I-will-have-to-fireform-right?-but-if-I-use-the-270WSM-brass-all-I-have-to-do-is-neck-it-up?-and-of-course-have-the-reamer-made.-Help;-please!!!