Quote:
Originally Posted by edgarspencer
Keels offered no structural integrity. They were there to take up space, because solder (Sn and Pb) is much heavier than steel, and if they just filled the whole gap between barrels and ribs with solder, the barrels would be too heavy at the muzzle.
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Wonder if one could just get a cut nail and then file off one side and shorten and bingo, you have a shim.