I get the feeling that it is a sin to mount a scope on a fine English double and yet perfectly acceptable on a newer version/manufactured double. I would assume that it has to do a lot with cost and value of an original old English rifle, but it is kind of sad that if it is a value to the shooter to add the scope and have the availability of the scope, that it would be a decision based on the type of gun used or the tradition evolved around a certain type or make of rifle. It is kind of funny how we do things as people and hunters and I am as guilty as the rest in falling into tradition and doing what is considered right and wrong for a current situation. My original post was pretty much based on whether or not the .470 NE is too large of a caliber to make a scope useful or not on the rifle. Many large rifles blow up the scopes and make them difficult to use. I also did not want to make my new rifle UGLY as a result of adding the mounts as it really is a beautiful rifle and a pleasure to look at. I really appreciate the great knowledge that this forum has to offer. It has been very informational to me to help with my decisions in an area where I had a complete lack of knowledge prior. I would not use the scope on this double for hunting purposes unless it is needed. I would like to use the double iron sites and have the scope with me as a backup if a situation presents itself. The Chapuis I purchased has the rib cut out in two places and it is drilled for rings so it should be easy to install swivel mounts, but I figure it goes through the same process to install the Claws. I sent an email to JJ at Chaplins to see what options I have, but have not heard back from him as of yet. After receiving all the options, I think I will go forward with adding the Swarovski PVI Illuminated scope to my rifle. I have not heard anything bad as far as this scope blowing up on the big caliber guns thus far. I am hoping to not need to re-regulate the rifle though after adding the scope. I don't know how much it will affect the accuracy once the additional rings are added to the barrels. Does anybody have any experience with this area?