Thanks, I will contact S&K and Conetrol as they only show the models for the varmint barrel with no rib. Probably would not be that expensive to modify the rib if it is deep enough. If not the Talley route will work.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli