Hi Tom, Sorry I'm so late getting back to you. I hadn't realized you'd responded till just now.
I just went out and double checked and I've got .082 to .084 on either side depending on where I measure so I'm pretty close. I think the issue is the thickness of the web between the barrel and ramrod groove on this precarve. I just didn't get that nice rounded look to the forend. It's real close but not quite right.
I've only handled a few well built rifles and several of those have been at the Williamsburg Gun Shop in VA. Maybe they are slightly wider or the web is thinner. Either way, they have a real nice radius to the forends.
I've got to get to Dixons, Friendship, or the like to see a bunch of these to get a better mental picture of this detail.