A 7mm rem mag realistically speaking is not any more powerful then a 30-06 except ithe 7mm rem mag is flatter shooting in the lighter grain bullets, when you get into the 160 grain and heavier bullets with a 7mm rem mag its ballistics are no flatter shooting then a 30-06 in similar grain weights. with that said I would go with a 300 win mag or one of the new short action 30 caliber loadings available from remington or winchester. Myself I dont have the need for anything bigger then a .308 or 30-06 both of those calibers suite me just fine even for elk size game. good luck hope my post helps