I switched scopes on my Axis a little while back and ran into the same problem you did. My original scope had a longer tube than the new one so I needed a one-piece base to allow for a narrowing placing of the rings. I went with the EGW and it has been great. I did have to cut off about 1/3" though as the tube was so short the ocular bell was hitting the end of the rail. After that modification, I was good to go.