Originally Posted by busse fan
Where did you hear that they don't open unless bone is hit? It's a light bullet going fast. My wife has shot quite a few deer with her 243 using the 85gr tsx. All boiler room shots and all dead deer.
^^^^ Exactly what I wanted to say, I've given a good bit of advise based on my experience with Barnes (X, TSX, TTSX, MRX). I (almost) always advise using a light for caliber Barnes @ high velocity for as close as possible to perfect performance; which is where (IMH0) the 6mm 85grn TSX lands. This bullet has a good ESTABLISHED reputation out of the .243, the one caveat is the poor bc.
If you were shooting one of the old 95grn X-bullets out of a 243 (where I started), I would highly recommend the neck or shoulder shots. That situation has been all but eliminated with the advent of the 85 TSX & 80 TTSX the latter of which I'm going to experiment with out of a 12" twist 6mm AI @ about 3600fps
You have a good combo there, I would have the utmost confidence with it.