If you are talking for the Contender I have several thoughts. BTW the 7x30 Waters is a good cartridge and it is not a wildcat. 222 Rem Mag Imp with 1-8 twist barrel for VLD's, 6.5x50R B....m, 6.5 Super Bower, 6.5 JDJ, 30 Alaskan. Three of my favorite LR cartridges (not for Contender) is 6.5-284, 284 Win, 7.82 Patriot. I enjoy the LR shooting. In essence it will come down to BC and MV, assuming good rests, accurate barrels, etc.
Ernie