Is it posible to form .257 WBY brass from .300WBY brass? I've read I can make it from 7mm and 264 mag brass but end up with short necks. Is that a problem? Also how about making it from 300 win mag brass would that solve the short neck problem? Sorry if the questions are crazy, just trying not to have to buy the wby brass, pretty spendy. Thanks for the help, Kris