Franchi Momentum Elite

[foxfyre841]

Not sure about friction tape but I see scope tape advertisements that are selling kapton tape for this purpose ...with significant markup. Kapton is pretty good stuff for extreme temperatures (I work in a lab of sorts). I don't know how uniform the thickness is but suspect it's much better than electrical (and firmer, almost like a thick mylar film).

 

[Gila]

Not sure about friction tape but I see scope tape advertisements that are selling kapton tape for this purpose ...with significant markup. Kapton is pretty good stuff for extreme temperatures (I work in a lab of sorts). I don't know how uniform the thickness is but suspect it's much better than electrical (and firmer, almost like a thick mylar film).

Some rings, especially the steel are machined well enough that lapping isn’t required. But I would lap the rings first. Burris usually puts in some friction paper in the package with their standard steel rings. My scope has never moved on me for about 5 years now. Shot it quite a bit. The Burris tactical rings aren’t going anywhere. Very wide with 6 screws per ring. There is a plastic collar inside the rings as well. I put those on my 34mm tube. Generally the (steel) rings stay in place if they are well degreased and lapped, with blue Loktite on the screw threads, torqued correctly. I have never used aluminum rings because I think aluminum is more likely to slip. But plenty of people use them without problems.