Why do you let it get so hot? All it takes is a little water from your cantine poured over the barrels to cool them nicely and I assure you, from years of experience doing this, no harm will come to the barrels. Routinely doused my Kreighoff when shooting competitively Just pop off the forend first then with the muzzles pointed at the ground pour the water over the outside surfaces starting at the breech area. About a half a bottle of your Perrier drizzled slowly over the surface will suffice if your gun is too snooty for tap water. If you are totally anal, plug the little hole in the bottom rib with a toothpick first. The evaporation of the water from the barrel heat will cool them and insures there is no water left to encourage rust. Remember the reason your barrels are blue is they were boiled in hot water. Besides that you are worrying about the wrong part of the gun with respect to heat. The heat is much more likely to damage the wood in your forend than the soldered ribs.
Last edited by Jerry V Lape; 07/25/07 06:52 PM.