Bambam...leave the AR on the gun rack.
This is a big deal in the family and I want to show up properly equiped but not looking like I just went out and bought what I thought looked cool.
If someone were to join me on their first deer hunt with an AR in .308....Then what I quoted in red is exactly
what I would think they did...
If you want to impress your father in law, get yourself a pretty, wood stocked Model 70 Winchester Featherweight in .243 with a Leupold 3-9x40 scope.
It is a beautiful gun, and it will be a great deer rifle. And since you have never shot before it will be less likely to get you started with a flinch than a heavier-recoiling caliber.