I have a coworker who recently had a session with a firearms instructor. One of the items in the lesson was “double-taps” and the way it was conveyed was firing a shot, then following up with the next shot during the recoil cycle causing the next round to go just a bit higher than the first but close enough to combine the two wound cavities for more damage.
It sounds like malarkey to me and I wasn’t able to research anything discussing such a concept. So, I figured I’d ask about the concept here and if there’s any sort of validity to the concept.