I have no problem with a shot 40 yards or under as long as it is a clear shot and I can put a load of 00 buck in the boiler room, I would probably stretch it out to 50 yards with my 30-30 on one running with the same conditions as the shotgun shot. I have let plenty of them keep on getting up because even though I could have hit them it would not have been a clean shot. Being an ex duck hunter helps a lot when it comes to shooting a moving target, a mallard is just about the size of a deers kill zone.