I raised a dent in a set of Damascus barrels for a member here that looked like they'd been slammed in a car door. It had a pretty sharp crease and the dent was deep enough to cause the barrel set to bend. I borescoped the inside to see if there were any visible cracks before raising the dent. Of course there wasn't, the metal is very malleable. I ended up having to put the barrel set in a hydraulic press to straighten them after raising the dent.