42 45mm medium 45mm may require high.
Scope ring height chart.
That figure is your scope ring height.
Another way to do it is to measure the scope tube diameter at the objective lens and half that.
40mm low medium height may be required for heavy barrel.
Use this simple calculator to figure out if the scope and ring combination you re using will clear the barrel of your rifle when fitted.
Selecting the right base.
50mm high super high height may be required for heavy barrel.
This calculator takes into account usage of butler creek scope covers as well as the scope mount for traditional bolt rifles.
Scope ring height and clearance calculator.
Actual height of rings needed for the corresponding objective size.
Subtract the known height of the base from the height in the chart to determine the.
To arrive roughly at the scope height measure the diameter in mm of the objective lens the leading lens add 2 4mm for the thickness of the scope body and half the result.
Ring height for 1 inch tubes.
Ring height for 30mm tubes.
Ring height is from the top of the base to the bottom of the scope tube.