If your close to a Cheaper Then Dirt store try Bitterroot Valley Ammo.   I've shot over 200 rounds of each  hornady, bitterroot, Winchester, and Remington  (55 grain) and find the BVA are just as good but cheaper, and hold true with other brands of ammo of same grain.  Were the hornady have always shot high and right for some reason.

My dad is camping at Malden Park, he doesn't dog hunt but does have a boat!   

http://www.chuckhawks.com/rifle_ballistics_table.htm

just some info......

22-250 but aim for the neck if your going to hunt deer.