I killed 5 very heavy 8 points in WV years ago with the 158 Sierra JHC out of my 6" Python. None ran more than 5 yds. All complete pass throughs. All double shoulder or rear edge of shoulder/lung shots. Internal damage was 1 1/4- 1 1/2" of destroyed and blood shot tissues.
Did at least that many does with 158 XTPs. Less damage, longer runs. Never have been a fan of XTPs in .357/.44/.454.
Never chronoed the loads, but my reloading manual suggested about 1350+ fps. Good enough for me.