Scary accurate - Tactical Solutions X-Ring Open Sight Barrel

Just finished installing a few days ago. Went together without a hitch. Open sights are highly visible and easy to adjust for elevation. Had it to the range to sight in my SIG Romeo 5 red dot. Shot about eight groups of three at 21yards. Three of my groups were one hole. One of those was almost on top of each other. The other five groups were also very small. Using plane Jane Federal .22 LR. Very happy with the accuracy, especially since I was using a 1x red dot. Looking to add another barrel to my second 10/22.