i'm having a hard time figuring out what did that - BECAUSE - if it wasn't some type of clamping tool as there's marks on top and bottom - i don't know what could have done that other than a dog - and if a dog didn't do it - that's not the only area of your bow to take a hit. for something to get in there and make those scratches it would seem other parts of your bow may have taken a hit also.