I have a friend that shoots a 300 BO... he loves the subsonics... has shot at three deer last season at 100 yds or less says he hit all three.... didn't recover any of them.... said all three turned and ran off... hunts with a suppressor on each time...I said they most likely died somewhere around the property or are limping around right now... I told him subs are too low powered for deer unless he's playing Texas hold em with them...I told him get him some 300BO supersonic hunting rounds with mushrooming bullets or put the 300BO down. Also, I said bad shot placement can be a reason any deer gets away to live another day.