Farsightedness is my problem but on my most recent,(new to you Harry), a 54 longrifle. The back sight is relatively a wide rectangular opening and it has a thin blade for the front. The blade centers just wonderful in the fuzz of the rear. Haven't benched it yet,but hoping Daryls will volunteer,lol! It slaps gongs out to 109 yards,even the 95 yard life size bunny. In some light, I need to blacken the front blade. Still just having fun with 'er! Cheers