I find 99% of 270 wby haters have never shot or hunted with the caliber, so really their opinion means nothing. The 270 wby has become the favorite of mine for most North America hunting(I have three 270 wby's, and all the rest of the weatherby calibers except the 224). I like my 257 wby but the 270 wby is a better caliber. I have never used the 140 gr accubond for elk, but it should be fine, I have used both factory 150gr spire point and 150 gr partition load on elk and they both worked fine. One of employee's borrowed my 270 wby ultralight 2 falls ago, and shot a big bull moose with a 130 gr TSX with no problems.
Rob