This has been explained over and over again but sometimes you simply can´t drive a donkey to the water regardless how thirsty he is.
The killing mechanism of the VLD is totally different to other bullets; It will drill the first 2-3 inches of tissue (any tissue, including bone) without any expansion and will then blow up causing massive destruction. If the animal you're shooting is big enough this massive destructions will happen inside the animal and if it is not big enough you will have a horrible exit hole.
I have used them extensively on cull hunts in South Africa and Namibia and know they are efficient killers and this is something unargueable. The proof being in the pudding.
Shooting so many animals, from Springbucks to Zebras with them, I have eventually had one or two do a funny thing inside, though always killing the animal.
If you think you need an exit hole to kill an animal you should use large caliber cartridges loaded with solids.
Or, if you think how well a bullet kills is dependent on the looks of a recovered bullet (VLDs will normally look horrible!) then you should only use low velocity loads with monolithics, partitioned, bonded, etc. bullets.
