Like DM, I have mounted a couple hundred scopes on rifles of every caliber with Weaver rings and bases. Zero problems of any kind. I sold guns for twenty years and sold and mounted scopes almost every day. I have used several brands of Weaver style rings as well. I love the Millet Windage adjustable rings. When the Weaver Quad rings came out, I bought about 25 sets of them and they are as tough as it gets. Nothing is going to shoot those puppies loose. If you have trouble with Weaver rings and bases, you or someone else did something wrong because when insalled right, they will and have held up well on my 416 Rem Mag and several 375 H&H rifles that I mounted scopes on for African trips for some customers. Plus Many 7 Mags and 338 Mags.