6.5-06 imp. vs 6.5 WSM

[The Game]

Hey all
Thanks for the replies and opinions. I figured as much on the barrel dia. chambering for the WSM. As for barrel length I can put a 26" on the encore and still have a shorter than average total rifle length due to the lack of an action on the encore.I have yet to make up my mind and deer season will be here before you know it.I have a place where some nice deer come out of the woods across a wheat field that averages from 400 to 600 yards. I can do my part at that range with a good rest. The 2 rifles I have that could be used are a 7 mag remingtion and a 25 06 browning. The 7 carries enough mail to do the job but is not accurate enough to be sure of a definate kill shot at that range. The 25 may be a bit light in the seat of the pants to put one down at that distance. Although I have seen the 25 do some big things on medium sizes game. The 7 shoots well enough at 100 and 200 yards but as you know . A 1 to 1.5 inch group @ 100 gets pretty big at 600yds.Add in a little wind drift, yardage estimation, heart beat etc. and you are gambling pretty big.
That is why I wanted a fast accuraTE 6.5