Coalminer, I seat them based on the magazine length. I don't know how far that seats them off the lands but they don't touch. I do know they are seated longer than the cannelure. My go to powder is H4895 altho a look at the burn rate of Varget shows its just about the same as H4895. The thing is, when I started to reload for a 7-08 (back when they were still a wildcat) there wasn't any Varget.
I have some Varget and if we ever get rid of some of this snow, rain, and #@^&%$ mud, I plan on trying it out. I'm hoping that it will work in a spread of cartridges , 22-250, .260, 7x57, 7-08, .280, so I can simplify my powder inventory.