I have a pair of Army & Navy BLE's from the 30's, 28" barrels, that are just under 6 1/4. Not that there aren't Brit lightweights out there, but those guns are definitely on the light end of the scale. And I once owned a Lindner Daly that hit the scale at just a bit over 5 3/4. French guns are often very light, as noted above--especially those with plume ribs. Alex Martin made some "ribless" 12's that are very light.