i have a savage model 110 300wm. it has an older simmones 8 point 3x9x40 scope, but i can't seem to find the size of the scope, and i don't have the tools to measure it. any idea if its a 30mm or 1in tube? thinking of upgrading to a milett buck gold 6x25x56. couldn't be so lucky to have my rings fit it, could i?