Run 100 ttsx in ours. Have yet to see a bang flop that wasn't related to a quick shot, generally on the other side of 300 yards and made a mistake and clipped the spine on 2 different deer.
But they don't go maybe 20-30 yards or so usually. Not hard to find typically. I think the fartherest I"ve seen one go has been around 70.
Bang flops are a result of shot placement typically, but fast rounds can do it even if not on the CNS but fairly close.
