Did Ctrl+F in the Big Game brochure for "magazine". Exact wording:
"If semiautomatic, a maximum of six rounds are allowed in the magazine and chamber combined."
Only other result was regarding carry of firearms when hunting, other than handguns.
By its phrasing, one would think that the present capacity is the issue, not potential capacity. However, I suppose that would be up to the DOW officer to make a judgement call and then let you fight it. Not a fight I'd like to go through.