RE: Maximum Range
I try to restrict my shots to under 125yds. However, I believe my .54 is capable of further "if" the situation were just perfect (standing game, solid rest, time to sling up, time to execute a clean shot, etc). This is with a peep and a 1/16th inch white bead on the blade. It will put every shot into the chest cavity of a deer silhouette at 150 yards under perfect range conditions with a decent margin for error.
I believe my Savage is capable of 200yd shots if the situation were perfect as outlined above (1.5-5X scope). But, until such time as I can thoroughly test it at that distance I wouldn't be willing to risk the shot. I took a single shot at 200yds from the bench this fall at a deer silhouette and put it solidly into the chest cavity (with a 1X scope). Not certain if it's capable of doing it multiple times however.
To be quite honest, I'd prefer to shoot animals much closer if given a choice.