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Re: how difficult?
Hi Bruce, I too was having a heck of a time with silver solder joints so I worked with an expert for a few hours and learned a few things. If you are using oxy acetylene you have to run it very oxygen rich because the acetylene will develop soot in your joint causing poor bonds. I do a great deal of solder on sights and shotgun barrel joints and started using a induction heater from snap-on that is used to heat frozen bolts and nuts to break them free. With that tool I can heat a sight and barrel and solder the sight on in seconds, it used to take half hour. The biggest benefit is that instead of the heat creeping several inches and the worry of keeping other parts cool using induction heater only the direct area is heated and the heat doesn't creep anywhere. Very fast, very clean joints the look factory done.