Shot several with trans-sonic Speer 170 gr .308 FN bullets. About 45 years ago.
All shot in a field. Just behind shoulder. No apparent expansion, all exited w/minimal or no discernible blood trail. All animals were recovered but after runs of between 50 (shortest) and 200 (longest) yds.
No interest in repeating the experiment. Sure it would work. The variable I would not overlook is surrounding cover. A 200 yd run in an open field is nothing to fret. Thick cover is another matter.
