Is anyone familiar with the older Shilen actions? I just bought a "new" used rifle, built on a Shilen action. The action says "Shilen" and "60" on it, not sure if this is model number or serial number. The action is attached to the stock with three screws. The action is completely cylindrical, and is a solid bottom (machined in bottom, no clip/floorplate etc.). The bolt is straight fluted, with two parallel lugs on either side of the bolt face. It looks like it would be one of the original Shilen actions. The mounts that were on it were like the ones I have on a vintage pre-'64 Winchester .220 Swift, for a Lyman Super Target Spot or something. What size, type of mounts should/could I use? Any other info would be appreciated. Thanks in advance.