Hey Chap,
I don't have extensive experience with the Barnes but I have shot two.
1) 250g Expander MZ - Doe - entered the brisket and exited at about the last rib on far side leaving a big hole at both ends.
2) 245g Spitfire - Buck in my avatar - broadside about half way between shoulder and last rib and center height wise.
as far as I know both of those bullets are still going