I cut the end off the base and kept the mediums on and was able to slide the scope back a half inch or so. I'm going to leave it like it is for now. I went and picked up a box of Federal Non Typical Whitetail ammo in 140 grain to finish the break in and see how close i could get it. I ended up with ~1" group at fifty yards which didn't impress me. I'll try a different load next time out. I would like to do something about the trigger travel. Any suggestions?