Author-DBM
Registered
I have carried and tested bang sticks while diving shotgun for a friend and yacht owner who was spearfishing in sharky waters in Mexico — lots of sea lions and whiteies were prowling. Not much to tell. You hit something fairly big and it blows a hole about the size of a large fist. Hitting a smaller fish, like 24" long, didn't have enough resistance to trigger it, at least the ones I was using.
Thanks, this does help. I'm just trying to determine the amount of damage a coroner would see when doing an external examination of the body.