Some of us complain when the lead comes out of the jacket or when the bullet does not exit and while this may not be failure it is some times expressed as such. That's why the make a lot of different bullets if you don't like the way it works the try a different bullet I won't say better because that's a matter of opinion. Some think the copper bullets are better some think the bonded bullets are better some think the brass bullets are better some think conicals are better but to me the only time a bullet fails is when it hits where it should kill the deer and it does not do the job.
What Lemoyne said. Lots of folks make good bullets; use whatever you want too. i won't try to push you toward any bullet. i will say that my chosen bullets work very well for me: They may not work for you. If the bullet you are using does not work for you or you're not happy that the deer went 40 yards after being hit; then use something else. Do not try to tell me that my bullet does not work because of some testing that was done on non-animal material.
There is very little doubt that some folks are pushing bullets too fast. Currently i'm using 100 grains of 3F Pinnacle with the 240 grain .430 bullet in my CVA guns. The velocity with 100 grains of 3F Pinnacle is around 1,750 fps: That's fast enough for me.