Welcome to Long Range Hunting
Stick a good bullet with a high BC on it and it'll be fine at 500 yards for nearly anything. 500 Yards is really a chip shot and nearly any rifle can handle shots at those ranges, the problem is the shooter getting over the "it's too far" myth. Practice a lot, use good marksmanship techniques, keep notes, keep quality ammo and maintain LOT control and most of all forget about relying on hold-overs, use a quality scope with turrets. P. S. Don't take marginal shots, it's adifferent ball game and the critters will be very different in reaction at longer ranges.
