Does anyone out there use the Optilock scope mounts on their Tikka Whitetail hunter? I haven' t been able to find them in my local store. On my Sako the rear base has a metal pin at the back that fits into a groove on the Sako rifle. A drawing of the Tikka base on their website makes me think that the Tikka bases have the same feature. I don' t recall seeing that same groove on the rifle however, but I' m not sure and don' t want to make the trek back to the gun store just to check since I have to order the bases online anyway.