I can't think of a better cartridge for whitetail . . . though there are a dozen or more equally as good. ;-). I would have happily grabbed a 6.5 x 55mm but was thinking 7mm-08 when I was shopping but the shop was happy to unload an unwanted .260 REM they'd had too long with a couple goodies bargained in.

If I didn't reload no question I would have gone with the 7-08 or a 6.5 Creedmoor. The .260 Rem needs the love of a caring reloader to get it in the right shape. But as long as the .243 WIN is available you'll always be able to form a .260 REM in the press. .308 WIN needs a neck turning but works as well.