Picking up my new CZ 455 Varmint 22 rimfire w/ thumbhole stock, fluted heavy barrel etc. tomorrow. I just bought a Nikon ProStaff Rimfire 3-9x40mm Riflescope and need some advice on rings and mounts. I will be shooting strictly targets and want a substantial setup. I don't have to have the most expensive setup but I want good quality for accuracy. Suggestions?