I know 180"s is a very real possibility. I have seen one while on stand. The neighbor killed it the next day( scored 181+). And I saw one scouting last summer that the same neighbor killed with muzzeloaderlast year. He scored 186 gross.
There have also been 2 real monsters killed in the area. One about 6 or seven years ago scored 237 and another scored in the 260's. Here is a pic of the 260".
So 200" plus is not out of the question.
260"er
186"er