Something else to consider...
Suppose a shooter can make 4 minute of angle groups with his iron sighted rifle, firing prone with a sandbag at 100. (Might be optimistic). That means groups at 300 are going to exceed a foot in diameter; at 600, over a couple of feet. Targets will have to be appropriate for this level of performance. Our shooter might be able to keep most of his shots on a Figure 12 target at 300. At 600, staying on a Figure 11 isn't going to happen. Having correct sight settings - zeros - is critical, if there is going to be any hope of obtaining a decent score.
An original or reproduction sniper rifle should do better, because of the optical sight.




























