Doesnt appear to be an EP lube, Stan. Chuck might weigh in on this, but, after any clearance in the locking mechanism is taken up, at the shot, the hinge pin is going to be rapidly stress loaded, and unloaded, in a few fractions of a second. I cant think of a better place for an EP lube, off the top of my head.
I beg to differ just a bit, but, the majority of wear I have seen on good double guns is from a combination of using hot ammunition, and a degree of neglect with same. Ammunition outside of spec for a double gun has eaten up bunches of them. I believe hot ammunition is far enough up the list that even guns proofed for the really big stuff have their working life shortened considerably using it. The second most common killer of good doubles, is gunsmiths who really arent.
My opinion only.
Maybe worth noting, regarding English gunmakers who have used the same combination of obsolete lubricants for a 100 or more years, is to keep in mind those same gunmakers had to be dragged, kicking and screaming, to produce breech loading guns, central fire cartridge guns, hammerless guns, steel barreled guns, and every other improvement that the market proved worthwhile. You could wax poetically that they were hidebound, or just tell the truth, that they were pigheaded, and too cheap to invest in new materials and methods, and resistant to change.
Innovation is notably lacking in the trade. Lubricants may be the most dramatically improved field of many in the last hundred plus years, but, you wouldnt know that by what the builders of fine guns continue to demonstrate.
Best,
Ted
