I have a Henry H001T lever action .22 that I like very much, it has a 20" octagonal barrel and is quite accurate with just about anything you feed it. I decided to upgrade the sights and see just how good it can shoot. I put a Williams FP-GR-TK receiver sight on it, this sight is click adjustable and clamps to the receiver dovetail. The original front sight is .500, a little high for my taste. I found a .450 sight with very fine white head in my gun junkyard which tapped right on. Took it out behind the house at 30 yards from a sitting position, I think we have a winner here. A real rifleman/woman (not me) could easily put them all in the bull.