I have a Mossberg 800BSM .243 Win rifle. I am attempting to put a new Redfield Scope on the rifle and wanted to also add new Leupold rings and mounts to the gun. However, no one at Leupold or Bass Pro Shops can tell me which ones to use. Anyone out there have any recommendations? I would love to get this resolved in time to use if for Whitetail firearm season in mid November.