It's somewhat unusual to report on a hunter taking a pair of locked antler bucks. However it appears that this happened at least twice in Wisconsin this year with two separate hunters. The first is Jon Christian of Montello Wisconsin, NBC15.com  has his story and amazingly a before and after video of the locked bucks. Apparently Jon's brother-in-law's trail cam happened to record the bucks fighting and he didn't discover the video until after Jon legally took both bucks.
Christian had no idea what to do so right there in the middle of the woods he called the DNR. He says, "She goes do you have a violation to report and I'm like no I'm trying to prevent a violation."
The other hunter is Rodney Hurst of Hixton Wisconsin. In his case one of the bucks was already deceased upon happening upon the pair. Like Jon he also called the DNR to get permission to legally take the pair. The Jackson County Chronicle  has the story about Rodney.
Lifelong hunter Rodney Hurst couldn’t believe his eyes when he was out hunting north of Alma Center Nov. 2. He was standing on the edge of his friend’s cornfield at about 3 p.m. that afternoon when a slow-moving 10-point buck emerged from the field. “I couldn’t see anything out of the ordinary until it got closer to me, and then I noticed it was dragging (another buck),” said Hurst, 32.