I have a weatherby mark v 300 wby. I just mounted my schmidt bender 3-12-42 30 mm scope in talley rings and bases. I put the scope as far back as it will go rite up to the bell and it still has to move back a little to get a clear view but I cant. What can I do now. Which bases and rings do u recommend I want the best or very good ones. Should I go to a rail is it better. It's on a custom build. I didn't have any problem with my Swarovski. Thanks in advance craig