Quilly -I have taken two bull moose and two bull elk with 180 gr ballistic tips and three out of four bullets exited with the fourth stopping under the hide after penetrating the bulls chest and offside shoulder.I have also taken over two dozen animals consisting of deer ,pronghorn and bighorn with 100gr ballistic tips out of my 257wby,140gr ballistic tips out of the 7mm-08,7mmrem mag and 7mmstw with the vast majority of bullets exiting with no bullet failures.Not one animal to date has travelled 50 yards after being hit with a ballistic tip with most dropping on the spot or within a yard or two.My velocities are far above what your rifles will develop so I would not worry at all about bullet performance with ballistic tips.In your situation I would try a 165gr ballistic tip.If you place this bullet through the lungs you will get quick clean kills and tracking should not be necessary.