All very interesting and why I thought it would be helpful to know what a cartridge like the 338 Fed would do to game at longer distances. I would still love to know from those that have real world experience. If the TSX or TTSX won't expand on an elk at 300 and something yards, but a cup and core will handle the close ups fine, then it wouldn't make much sense to load the TSX in that cartridge, unless I am missing something.
