Has not been mentioned, but I did one on a Husqvarna 9.3x57 barrel that I sawed off shorter - had no screw - needed propane torch heat to melt the "soft solder" - I do not really know if it was necessary, but I scraped the bluing off where the sight got re-soldered on, and de-greased with acetone - both underside of sight and scraped area on the barrel. Lots of flux. I discovered that soapstone coating or lead pencil coating on the bluing - solder "leaks" will not stick to that - really looked bad with dribbles of solder and quite a bit of flux - but all just wiped off cleanly. As above - is a bit of challenge to create a jig that will hold that sight at top-dead-center, when the "tinning" goes liquid. I used a coil spring to maintain pressure. Has not fallen off or been knocked off, yet. Is in my mind that I would prefer a "banded" style front sight, but have not got around to trying to make one - I am "too cheap" to buy one from a store ...