Here's a link from Drake's that OWD posted above that takes you to the pic that shows a definite step down--much broader and it also appears deeper than my Blanch. Do you think those Whitworth steel barrels that gun has are original to the gun or was it rebarreled by Purdey or someone else?
http://www.sitemason.com/files/caty7e/VMS54cxl.jpg
Some posters would define this as cobbled together.


Wild Skies
Since 1951