I saw a show years ago where they were showing a set of horns similar to this. They said it was caused by the animal being trapped in a fire or getting too close to a wildfire and the heat from the fire causing the ends of the horns to twist up like that.
One of my buddies found a set of sheds that were twisted up at the ends. We took them to the biologist and he said that they had a bacteria in the antler and that they will never get rid of it and it makes the horns twist. The DOW took samples from the horns to test.
JC
Colorado Hunting Consultants LLC www.cohunthelp.com