Seamaster, another look at the picture in post #15 -- notice how the crane is contoured to fit under the barre shank, not the other way around as on the 19/66.
Here's a picture of the barrel shank itself -- much more metal and no "snip" on the bottom.
Have almost 1,800 rnds thru mine, mostly 158s at 1,100 fps. No problems so far, and am thoroughly enjoying it.
Paul