It's interesting to me to read about so many bullet failures. I've been hunting for 50yrs and haven't had a single failure. Shot critters all over the US and Canada and never experienced a bullet failure. I originally shot Sierra boattail hunting bullets. They often shed their cores but they killed reliably. Switched to Barnes X bullets for a while and was a bit disappointed by how some animals didn't even look like they were hit despite good shot placement, but they were all dead in short order. Long before there was a controversy about "target" vs "hunting" bullets I got hooked on using A-Max bullets for whitetails. An incredibly accurate bullet that occasionally exited but sometimes not. All the deer died quickly, regardless. I shot an antelope at 440yds with a 162 A-Max. Bullet impacted behind the shoulder but the seperated jacket took a right turn and zipped his abdomen open causing his entrails to fall out before he dropped. Moved on to Bergers before they differentiated between target and hunting bullets. Got reliable kills with few exits. Accubonds were my mainstay for some time, and I still use them. They killed deer-elk-moose with equal authority, and I could never understand why some called them "Accubombs".
Lately, I've been using Hammer bullets. While they may solve some of the problems that other shooters have experienced; I use them because they just shoot well and reliably kill critters. I've had a few DRT while others ran a bit with devastating injuries, but the bullets didn't fail to do what they were meant to do.
While I've seen bullets do some wonky things in animals, I can't say that I've ever had one FAIL. Maybe I'm just lucky.