I'm just not I have my reasons and I'll leave it at that.
I admit to not being a fan of tipped bullets as well, but only in some bullet types - particularly in thin-skinned target gullets like the A-MAX. SIL hit an antelope, facing, in toward the front of the backstrap (poor placement for sure) and it traveled down to the left ham. Pretty well shredded the rest of the backstrap and much of the ham. For that matter, I don't like thin-skinned target bullets for game, tipped or not.
The only tipped cup-and-core bullet I've used in my rifles was a 150g BT at less-than-max velocities and 282 yards on a cow elk. It was down before I recovered from the recoil.
[Edit to add]
Correction. I used a 95g SST in a used .2343 Win I picked up on an antelope doe. The SST load was the only load I developed because a) it was the first, b) it shot bug holes, and c) I ran out of time. Had planned to develop a load for the 90g AB but didn't get to it. The SST did the job with no issues, but I've since switched back to my .257 Roberts/110AB/3163fps, which has taken a lot of antelope over the years.
[End edit]
With TTSX I've seen a couple failures - both with the tip coming off in the action. The problem was traced to the noobie shooter jamming a bullet from the magazine into one that had been hand loaded into the chamber.
Other than that, no problems with AB (which we use a lot and TTSX (which we use even more). I think the Federal Edge TLR may be the best hunting bullet design ever, at least conceptually, although I have yet to try them on game..