Assuming its drilled and tapped, I've simply used a Weaver low profile base. Some guys like a "see through" which sits higher so you can peek under neath and use the iron sights too. Being that its a 44, I wouldn't use it out beyond 75-80 yards myself. After 100 yds, that 180-300 gr. round looses to much punch. (IMO)
No need for a high power scope.