i had purchased a ruger m77 .338 win mag a couple years back for a bear hunt. it came with a redfield 7 power scope. i would like to replace the scope soon to something of a higher magnification (im willing to spend in the area of 400-500) if anyone has any reccomendations that would be great. id like to be shooting long ranges. would it be able to shoot out to 500 yards with the proper scope, correct handloads, and the right shooter? sorry for all the questions but im just getting into rifle shooting ive been messing with my 700 .222 and want to try for some longer shots.