jon lynn,
What model .303 Rifle are you talking about?
Look on the left side of the receiver for any model designations such as "No.4. Mk1*". Also look at the metal stock connecting band below the bolt knob for additional information.
If you have a MkIII, scoping it will be expensive. If you have a No.4, Mk1, there are no drill mounts you can use for a scope. By the time you drill and tap this old war horse and recrown the muzzle, you would be better off buying a used sporter rifle in the caliber of your choice.
Adam
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Adam Helmer
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