A couple of questions for those that know more about this barrel stuff than I do (that includes most everyone).
1. Is there an easy method to determine if barrels have been assembled using low temperature soldering or high temperature brazing ("without" putting a torch to them--lol)? I know if you can see a brass colored line in between the barrels/ribs and/or brass at the muzzle, then the gun has been brazed, but what about all silver at the end of the muzzle?
2. Also, I have seen some doubles that have small holes or spaces (and some not so small) in between the barrels, top rib, and the lower rib at the muzzle end from a lack of solder. I am pretty confident that the barrels have not been cut or altered because the chokes are present, barrel length is standard, and barrels themselves are touching. Is this lack of solder considered a problem or a defect in regards to longevity or performance? Or is it just an aesthetics issue? Should guns that have this issue be repaired?
Thanks for your responses in advance and I'll take my answer off the air.

david