I guess I like 3 shot groups for a reason, when getting ready for hunting I shot the second or third shot wipe out wipeing so I know what the gun will do if I should happened to need that next shot.
When I do this, I use 3 three shot groups to mark the exact POI and group size. To be quite honest my Omega with 150 gr of RS and a 200gr Shock Wave is the only one that stays sub. one inch and it runs from 5/8 to 1 inch normally, and a tricky windy is all it takes to blow that. But most all the loads I use for hunting will stay under1.5 inches in good conditions. I find that often times the problem with a set up that wont group good is the scope if it has ever been dropped or banged, a very slight bend in the tube [invisable to the human eye] can cause horrible parrelax which will open the group right up some times to as much as 5 inches and I am talking about the top ofline of scopes the cheapos with serious parrelax to start with,well 3 inches is a good group with them.
3 inches is a good enough group to shoot at least 125 yds but I would check what it is doing beyond that on the range before shooting any further while hunting. Lee