Hey guys I was running a picatinny rail and 3 screw rings made by weaver on my 300 win mag with the weaver 3*15 tactical 30 mm scope. I was wondering if this is not a good idea on a magnum rifle. Someone told me the rings can work loose on a rail like that with a magnum rifle. Any advice and suggestions for a different mounting system for my rifle would be appreciated. Bitterroot Bulls what do ya think?