IMO go with a lower weight bullet. No need to get up to the 150's. But pick the right bullet.
As stated above take a look at the Barnes TSX/TTSX and the lowerweight NosPart's. If you can find something to your likeing in the 120-135gr range,that would be my pick.
Remember also,the lower weight bullets will be faster,giving a slight ballistic edge.
Also . . . the Barnes 110gr. TSX works wonders on the larger Fla. hogs (230lbs+) at the 6.8SPC vels. If not driven top end,wondering how it would kill deer at 270Win speeds. --- SAWMAN
ADDED - - -> Hornady also makes a "no lead" type of bullet called GMX. I have no expierance with these though.