If it's a 110 then it's a long action. Does it look like a factory barrel? If so that narrows down the possible calibers. Can you tell what the bore diameter is? If it's a 30 caliber bore, it's likely a 30-06 or a 300 Win Mag. Smaller than 30 and you'll get either a 7mm Mag or a 270 Win. If you can narrow down the bore diameter it will help.
Andrew