If I use my 243 for that purpose I'm thinking of trying the Barnes 85 grain TSX. On a bobcat I imagine it wouldn't open up at all, so performance would be similar to a fmj.
Anyone who speculates about a Barnes "not having time to open"... hasn't shot much stuff with them. I've shot at least 20 coyotes with the 100 TSX in the .25-06 (about equal in velocity to the .243/85 grain TSX combo)... be assured that they open plenty quick, as all coyotes had exit wounds about like a softball. If you go to the Barnes website... you'll see what I'm talking about.
55 grain Nosler BT @ a little over 4 grand and rock on!! Pure poison on varmits..... and deer....
This is the truth... it don't get any better than the 55 at 4k+. I've shot (or witnessed) well over 200 dogs (and one bobcat) shot with this load... I can count on one hand the number of times a dog was shot and lost.