The three longest shots that I can recall making ( 285 paced, 300 estimated across a narrow canyon, and just over 500 paces) were made with a 4X Weaver, 2.5 Weaver, and a 4X Zeiss, in that order. This was not planned, it just was what I had on that day. I do not see the need for a Hubble to see as far as game can be taken.
Having said that, I admit to having five Leupold 3.5-10x40s, all AO except one. IMO, they are at the upper limit for size on a hunter. The 4.5-14 is essentially the same scope body (or really close).
The 3.5-10 (see SWFA) and the 4.5-14 are both available with or w/o AO. I like the AO better than SF.
My only Wby .257 (light sporter w/24" #1 bbl) was scoped with a 2-7 Leupold and it worked fine the season that I hunted that one. This was during my gun of the week/month period, and really good accuracy was not there, so it went that way. jack