870 refinish ?

[tango3065]

A buddy had his 870 hot blued and the guy who done it for some reason redone the brazing on the barrel band that mounts to the mag tube. I know this becuse they used to be a small gold line around the band and now its bigger and there is a small drip area thats not noticeable because its under the barrel. I dont think it is solder because its gold and really hard because the small drip wont scrape off.

My question is why did he do this, and is this brazing or solder, and also why would he do this because hot blueing shouldn't take the barrel band off in the first place?

Also would this bother wondering about the durability of the barrel clamp coming off even though we fired around 200 rounds since the refinish?

[cntryboy1289]

The barrel band is silver soldered on by the factory.  There should be no reason it would have been removed and or silver brazed or soldered back on.  Do you know for a fact that the drip wasn't there before?  You would have noticed something by now if there is going to be a problem after 200 rounds I would think.

[tango3065]

The gun was bead blasted before the blueing would that have anything to do with why he redone the solder on the barrel mount?

[gunnut69]

While not an expert here I would bet it is silver brazing. A form of high temp silver solder. It shouldn't cause a problem.. It may not have been redone, the beadblasting may simply have exposed the drip.. There are commercially available compounds to blacken silver solder.. If the ring was brazed on using an induction process it may in fact be brass. This is more yellow than silver solder.. I believe there is even a product to color that..although a permanent marker will work in an area that receives little wear..