I have a couple of new in the box sets of Tasco World class rings. Both of these ring sets use a special kind of base. If anyone knows of any existing bases that might work for these please let me know. I have been snooping and can't find any bases for these. Please see the attached file and see what you think. Worst case I may have to just set these rings in the safe and look around at one of the gun shows when they come to town. Thanks for your help.

I got a set of these too, if yours needs some company!LOL! I see the bases at gun shows and such, but prefer weavers! These are nice steel ones though!

Can't open your attachment, but surmise they are the standard Tasco World Class steel rings that have two set screws in the lower portion of the rings that clampt to a post that protrudes from the base up into the bottom of the rings.

I've got a set of the rings, plus the base and posts. Can't remember what the base fits - think it is for a Contender barrel.

Can't open your attachment, but surmise they are the standard Tasco World Class steel rings that have two set screws in the lower portion of the rings that clampt to a post that protrudes from the base up into the bottom of the rings.

I've got a set of the rings, plus the base and posts. Can't remember what the base fits - think it is for a Contender barrel.

Yes these are just the standard post through the base concept or the regular Tasco World Class Rings. They look to be good quality rings and would like to find a mount that would work on a rim fire 22 rifle base or a standard weaver mount. I don't know what is wrong with the attachment. I scanned it as a pdf file and saved to my post. I can't open it either even after deleated and put it back in the post. It opens fine saved to my PC. Thank you for your help.