I have a set of dies for reloading my 22-250 savage. The resizing die is a full length type. Should I bother buying a neck-resizing only die or what? What about the X-Die from RCBS? Supposedly the neck only and X-dies make the brass last longer. Is this more hype than truth? And do the competition seating dies, like the open window ones fron RCBS or that sliding seating die from Hornady (the type of dies that make sure the bullets start seating straight from the start) help improve accuracy all that much? I'm already well under an inch with my savage with the regular RCBS dies. Between a 1/2 and 3/4 inch groups most of the time. I guess the point to my question is the money spent going to do anything for me? If it helps I'll get them, but other wise I'd rather spend the money on other stuff like dies for my Dad's 30-40 Krag and 30-30 win '94 and shooting rest type stuff. Mostly an opinion question I suppose..... Thanks.