I put a Leupold VX 1 1-4 power shotgun scope on my Ruger 77/44 and find no problems with eye relief or impact changes. I've used it on 2 deer; impact ranges < than 30 yards, and granted a 44 mag carbine does not recoil anywhere near a 12 ga with slugs does, but I believe the scope was designed for 12 ga slugs. I do like the Heavy duplex for my application.