EGW T/C Contender Picatinny Rail

Dear Rolf,

Thank you for your inquiry. We sincerely apologize for the delayed reply, which is a result of the increased demand for our services.

You can calculate the minimal BH height you need by using this simple formula: Take the outer diameter of your riflescope's objective, then subtract the tube's diameter, and then divide the result by 2. For example: If your riflescope’s outer objective’s diameter is 60 mm, and your tube diameter is 30 mm, you would subtract 30 from 60 and get 30. Then you would need to divide 30 by 2 to get 15, which would be the shortest BH height that you could choose (15 mm).

Additionally, if you have a Picatinny rail mounted on your rifle, then yes, you need/can subtract its height from the result we got in our example. This means (taking the example above into consideration again), if your Picatinny rail is 5 mm high, you would subtract 5 from 15 to get 10. This, then, would be the actual shortest BH height that you could choose.

We realize this can be a bit complicated at times, so if you will need any further assistance, please do not hesitate to contact us again.

Kind regards.