Every T/C I've owned, shot Barnes TMZ bullets extremely accurate. I preferred the 250gr TMZ. Favorite load was 107grs by volume or 75grs by weight. Drive right through a whitetail, bone and all, at 200yds. Barnes perform flawlessly down to 1,100fps.
I've tried the TMZ. Accurate, yes. Absolutely the devil to load and get down the barrel? You bet. If I had 5 minutes, my range rod and a hammer every time I needed to reload I might use them. Unfortunately that's not the case.
I'll try them in the second Impact, but if it's just as tight, forget it.