Yes it not a good feeling when you find a deer in this state and all kind's of question's run through your mind about the buck's demise,but as Charlie has said it definetly didn't go to waist .
As for a bad shot ,well we all make them doesn't matter whether your a good shot or an excellent shot ,if the deer jumped the string he could make any of us look bad with our shooting .
What get's me is when a deer die's in the wood's and the predator's get to them they alway's go between the leg's into the rear area or the gut's first ,and usually leave the front and back till last .
At least you were able to salvage the rack for good use ,and you now have another story to save in the ole memory bank.

nubo