Sounds like a great deer, congrats to you and your pal!
The shrinkage isn't something that can be assured but 1-3" would be about average off the total score. If he is sitting 180's green net he'll have no worries about making the book. Really who cares if it place 171 or 178 he's in the book and that ain't something to many can say..
BIG ACCOMPLISHMENT and he should be very proud whatever the finally tally ends up being
