The Perazzi video is very entertaining, but is he sure the trunnion pins will fit the cuts in the barrel? How about the engraving? There is a lot more to this job than the video shows. Strange that my 682 Beretta has been flogged since 1985 with five sets of barrels switched back and forth and the trunnions are still tight as new. Of course, I paid the big buck for it....$1200.