I use G&H and Jaeger QD side mounts on a couple bolt guns, with Lyman 48's as backups. (But often the scope is a backup for the Lyman 48's. I've been known to carry the scopes in a nifty German leather tube slung over my shoulder, and mounted on the gun if I take a stand and sit for a while.)
My primary hunting rifle anymore though is a Ruger 1A 6.5x55 with a Leupold 1.5-5 in offset Leupold rings on it, but the barrel sights were regulated for my standard load before the scope went on. If I mess up the scope somehow I can get it off the gun with my Swiss Army knife.
