I have several XTPs (.454 ) recovered from medium size WV whitetails on quartering shots, poorly expanded.
My thoughts are if I can recover them from our small whitetails, then I'm not shooting anything bigger with one.
Another useful bullet is the Speer 260 gr. Mag HP. Oddly, they do super on deer with decent exits and damage and always complete penetration, but they are death on turkeys- broadside shots, 1" damage, instant drops, 35+ birds taken with zero losses.
Still, A Frames are the best. Not good on turkeys. Took one by mistake with them. Low hit. Completely gutted the bird. Only had to dissect the breast.