Hello all! I resently picked up a project gun, and everything is going great with it with one exception. (The rifle is a Mauser M48, the P.O. had started sporterizing it but had to sale it before it was done. So with that in mind I'm not in the least concerned with collection value as he had already destroyed that before I got it.) However when he removed the original sights he didn't get the old silver solder off the barrel. Can anyone tell me how to do that? I've heard the only way to do it is to heat up the solder, but I'm concerned about getting the barrel hot enough to melt the solder. Will heating it damage my barrel? Is there some kind of "cold" method for removing it?