Remember this is a bore sighter and gets you close. For a shotgun, out to 30 yards for turkeys, waterfowl or upland birds, this will be right on the money. Just double check the pattern after boresighting. I have the end of barrel bore sighter. But needed something easier to use and for traveling to hunt. And after getting to a hunt and missing a nice gobbler by shooting over a foot high I was convinced to buy this. We re- patterned my gun, (I have a tru-glo red dot) and got it on target. When ISee full review