[Matt304]

I had a Remington rifle sight soldered onto my 12ga blued slug barrel. I bought a long scope which is hitting the sight now, and I need to unsolder the sight.

What is the proper technique to remove the solder and sight completely, so that I can then touch up blue?

Thanks

[koginam]

hit it with a torch as the solder melts it will bubble then use a wire brush and knock the sight off, as soon as the sight comes off hit the solder with the brushes bristles and that will remove most of the solder, then with a clean rag rub off the rest of it.
If you do this fast while the solder is hot it makes a clean job.

[Funderb]

use an angle grinder and a hack saw and just cut the barrel off before the solder job...

not really, what he said. ^^^ :D

[simmonsguns]

If it's silver solder it's going to take some good heat.

[rcmodel]

Regardless, good luck getting all of it off so cold blue will do anything.

If it is silver solder, you may have to draw file down to bare steel that will take bluing and go from there.

rcmodel

[Matt304]

Canceled.

It is silver solder. Instead, I am simply rebarreling the gun.

[Sunray]

Silver solder isn't that big of a deal. A propane torch will do it. Mind you, having two barrels isn't a bad thing either.

[simmonsguns]

You have never tried to take one of our sights off. the silver solder i used on mat304's gun sight melts at 1,250 deg. it won't fall off.

[rcmodel]

+1

Using a propane torch with high-temp silver solder results in the whole firearm becoming a big heat sink before you can get the SS hot enough.

If you have the real thing, you need a hotter torch then a propane torch in order to heat the parts quickly without smoking the whole gun!

rcmodel

[RogersPrecision]

There is:
Silver bearing solder. Melt temp 475-850f.
True silver solder (braze) Melt temp 1100-1300f.
Sorry to contradict experienced posters.
:confused: