Used a 100 gr Grim Reaper expandable. Shot 6 pt 150# buck at 15 yds.He started forward after doe when I shot and hit him too far back but fortunately struck larger artery and he only went 50 yds.
PROBLEM: Mechanical head never opened. It went completely through him and was laying unopened on the forest floor. It had enough kinetic energy to pass through and only struck soft tissue. The head opened easily by hand after I recovered it. I do not know why the head did not open but this really gives me reason to trust the head further.