Thread: Non corrosive flux for silver solder ?

Do it the traditional English gunmakers way and use resin flux. Brownells do a high strength lead-free solder (silver/tin) called Force 44 that is perfect for the job. The surfaces are dressed clean and neat-fitting then fluxed and tinned, the assembly is wired and wedged tightly together, then the whole job is done in one hit in a big oven or muffle furnace. Laying the ribs is the last thing done after the barrels have been test-fired and regulated on a range. Regulation involves a rudimentary set of temporary sights and a soldered muzzle wedge which is adjusted as required to bring the two barrels to the same point of impact at the desired range. This is one of the jobs that makes double rifles so expensive! Spare a thought for the gunmakers that had to regulate the .600 Nitros!