Why do we do that? We get set up all proper like for a rifle/cartridge combo and then sell it all off only to do it all over again.
I've had a few 358Winchesters over the years, some nice, and sold them all knowing that a 358Winchester really does not have anything to offer over a 308 or 30-06. I recently came into a good deal on an entire loading setup for the 358 and am now considering looking for a bbl to go on a 700 action I have in a nice Brown Precision. I know I don't need another rifle and have been diligent on reducing the load in the safe. It's a sickness, I'm sure.