Marlin 60 - Outside Diameter of Barrel

[SmithArms]

Can anyone share the outside diameter of the barrel on their Marlin 60? We need to know the OD at the end of the barrel (not on the chamfer), and the OD at 1 inch from the end of the barrel. Please identify the year of your rifle. Please also note if your rifle has the screw for the front iron sight at about 1 inch from the end of the barrel. We need to collect as much data as possible for a muzzle device we're designing. To get us started:

At end of barrel: ~0.660" OD
1 inch from end: ~0.677" OD
Sight mounting screw is located 1 inch from end of barrel
Production Year: 2011

Thanks!