You may have to start over and use this style of base http://www.midwayusa.com/eproductpag...583&t=11082005
that is designed specifically for your gun and then use leupold weaver style rings. That will allow you to mount the rings closer together to fit the shorter tube of your scope.
I replaced the 3x9x40 scope and had the same problem mounting a 6.5x20x50 scope on my savage 110 w/accutrigger. To make it work with the shorter length of 1" diameter tube that is what I used.