The last few years I have hunted elk I have been in an area where a 100 yd shot is a LONG shot. I plan to remain hunting in this area for a while. I still hunt elk with my 300 win mag, but I would like to get something that isn't really for long range yet has a heavy bullet, say starting at 250 grain (just to give an idea). Don't really care about bullet drop after 150 yards. What caliber should I look into?