I never had one pencil through and I have shot a couple hundred of them at game starting with the original. I did go through a long spell of on the shoulder shots but quit after I had a freezer full of blood shot shoulders. Maybe with behind the shoulder or soft flesh only shots they are slower killers than other types of bullets but you can't prove it by me. I would need high speed camera footage to see any difference if it exists.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli