I always said I wouldn't use them on elk and am now convinced. A guy I know shot a bull a few days ago about 30min before dark.
Trailed what little blood he could find and backed out. Next day went to his parents house to approach from where the bull was headed and when he got to
their house he noticed a nice bull pushing cows around by the apple trees. It was the same bull he shot lol. Arrow poking out and all. Anyway, once light he
poked him and the bull bugled so he poked him again. The mech head to the lung had failed to open.