Skeeter7mm-I only use one bullet for my 7mmstw and that is the 140gr ballistic tip.Driven at3500fps deer usually drop on the spot but do occaisionally make a few steps before falling.Out of thirty head or so taken with ballistic tips no animal has covered 50 yards after being hit so no tracking has been required.I take lung shots only but due to angles ,shoulders are sometimes hit resulting in more damage than desired but a dead deer nonetheless.Several friends also use ballistic tips in their 7mm mags with similar results.In all cases when lungshots are used the bullets almost always exit.With extreme angles and texas heart shots results may not be satisfactory with theses bullets and if you really want a bullet for these type of shots go with a premium such as the partition, failsafe or barnes x as no conventional bullet can be fully trusted in these situations.If you are prepared to pass up these shots ballistic tips will work fine.