Roly: Two points to mention, as I'm sure you know a scope's tube diameter controls the amounts of elevation and windage possible in a scope's adjustment. Two, the Zeiss DIAPI-D as I found out when I purchased one, was designed as a .22 scope not a centerfire scope. As a result I was told the adjustments were limited to what were needed for a .22 LR. I hope this helps a little. Very nice rifle! Cheers Jerry