Re: Calculating sight height with canted base?
Half the bolt diameter, plus half the scope tube diameter, plus the height of the gap Between them. If there's slope, measuring the gap at halfway between the rings is close enough.
As LL says, the tolerances needed here are not microscopic.
The reasoning behind that is simply that even if you got it right at the microscopic level, outside factors, like uncontrollable environmental factors affecting trajectories, will pretty much always negate the finer precision in the overall calculations. If this were not so, all groups would be one bullets hole's width in diameter.
And I think we all know that's never gonna happen for folks like us.
Calculation may warm one's heart, but reality is still not one's best friend.
Greg