We live and hunt in Northern MO. That was the biggest we have had on the scales. We are usually fortunate to get a 200-230 field dressed every year or two depending on how the hunting goes for myself and my 6 kids.
In reality we are probably looking at getting a round to use out to 300 this year. If lucky we might make to 400 but doubt it. To much work going on. I definitely wanted the advice of those knowledgable on the 308 before I just started down a path that probably wouldn't turn out well.
I have some 155 ELDMs so we are starting there, but I will probably order some 168 and 178s also for future development.