Check rimfirecentral.com they have a huge list of what people have used before. You have to make sure the rings are high enough so the bolt clears the occular of your scope. If you can go to a store with the rifle and try things out to see what fits you'll be safe- but unless you have a known good combo I'd be careful mail ordering.
Also- be aware that some rimfire rings have a base clamp that can be flipped- one side is for 3/8" dovetails and the other is for 11mm. Your 455 has 11mm, but the rings may be set to the 3/8 size and will appear to not fit properly.