I currently have 3 guns with swamped ribs, all Ugartecheas. A Falcon and two Grade IIs. It's been my assumption that ribs made or installed that way are just cheaper and easier to make than to fit one that is perfectly flat lengthways down the barrel. The swamped ribs simply follow the swamped long contours of the barrels, similar to the under rib, just thicker.


> Jim Legg <