i go by my own rule as " 130gr. is the smallest " i would go.

if you are hunting in thiock stuff where shots get out to 125yds. i would opt for a differant caliber. every bullet deflects on branches. but i just like a bigger bullet.
like boltman said. the 260rem seems to be a fine round ( unfortunatly browning dose not chamber that round ).
look at a small action in maybe a 7mm-08rem, 308win, 260rem.
or just go with a lever action in maybe a 35rem or 30-30win.