Recently purchased a Bushnell Ellie 4.5-30x50, 34MM tube to put on my ruger mkii. The rifle has been rebarrelled with a heavy barrel from hart. I purchased the only 34MM rings I could find, leupold high. They aren't high enough. Probably about .050 -.1 to low. I've searched and can't find any other rings. I looked at a couple of ruger to picatinney/weaver bases but I question the integrity of them. Not sure they will hold up. Does anyone make custom rings or does anyone have experience with the weigatinny? (Jack weigand picatinney base for ruger)