Ok was thinking about this, and would ask you if you or anyone near by runs a feeder
reason I ask is, I have seen deer fight a LOT about feeders, and they can smack each other on the nose pretty hard
mostly see doe fight doe, for there turn at a feeder, but have to think a bitchy doe would strike a buck
maybe more so now if they have fawns
and that could explain the nose on this deer to me, if not a bug bite or, heck even a snake Lol