Ive shot a few deer w 180, 200 and 240 xtp.
They blew on through if out a ways ( broadside chest hits )
Used a couple for coup de grace and up close tbey came apart and were on offside hide or didnt make it that far ( 4" and 6" Smith 629s )

Think an XTP to be OK for deer but not perfect.
240s in Mz seemed to zip on through. Forget what the TC sabot stuff was. Same deal.

NEVER have I gotten a fist sized exit.

In fact, exits seem pretty small.

Sample size is under two dozen.

Tried the old Rem 240 gr JHP in sabot ( .44 cal in a .5O ).
Old days, 100gr of powder in MZ

Same deal, small in and out, nothing fantastic.

If I was gonna use a rig for something that might chew on me, would NOT be an XTP.

Granted, Ive not shot the 300 grainers. I disliked the recoil.
Broke my trigger pivot on my 4" 629 too.