What he said.
The Leupold 2-7x28s are a great fit on the short action 77RSIs 'cause the objective is small enough to clear the open rear sight. Since your 77RL doesn't have a rear sight that needs to be cleared, the 2-7x33, 3-9x33, and 2.5-8x36 would all be good choices. Sightron used to make an SII 2.5-10x32 that is, size wise, nicely balanced for 20" barreled short action rifles.
