I have been shooting the Warne MAXIMA mounts for a couple of years and they are excellent. They are available in a NON-REMOVABLE design that is ideal for use with Picatinny rails such as the Badger, MK4 etc (one piece sloped bases). If you can't justify 150 bucks for tactical rings, check out these Warnes at 60 bucks, they are beautifully made and very rugged. The detachable models are proving completely reliable on some rifles right up to .300 Ultra Mag. Non detachables are really nice looking, no side levers. This is a better route to go in my opinion than dual dovetails or regular dovetail/cross-bolt rings.