Go to a different sight base if you can. If you are using two sight bases see if you can fit a Weaver rail to the action and you should be able to mount your scope successfully. I had a similar problem, almost, with a Bushnell Banner Dawn to Dusk 1.5x4.5 power mounting it on a 8mm 98 action with two bases, so I ordered a Weaver rail and will mount that to the rifle and then shouldn't have any problems with my short scope. HTH. Mikey..