My Dad was like this^^^, and I ended up supplying his ammo for his 270. He believed ballistic tips were the end all be all, and after I helped him trail a doe for hours and not find her, I resighted his gun with my handloads. He really didn’t think it was necessary, but I felt better.I know for a fact that a whole lot of hunters don't have a clue what bullet/load to use.
They just buy whatever is on the shelf at walmart in their caliber and expect results. Most don't know the difference between FMJ, softpoint, ballistic tip and varmint vs hunting bullet. When results don't come, dog trackers get a call.