79 6/8 + 2 or 3 (normal shrinkage in 60 days according to the most knowledgeable antelope hunter around) = 81 6/8 or 82 6/8 + 1" additional shrinkage for the extra 5 months it sat around somewhere = 82 6/8 or 83 6/8
Just saying, it is definitely possible the OP scored it somewhat close...