Watched the videos...fascinating to me with an analytical mind....I am sure it works, but as a shooter, hunter I have always relied on the old method of "fouling" the bore for accuracy. Maybe an old tale, but for over 6 decades I have always fired at least one shot before hitting the field. I don't remember or care about where I heard the term fouling, but I have never, ever, gone afield with a rifle or pistol that I didn't zero prior to the hunt. I have bought a few new firearms, and that needed to be "broken in".....another series of steps to get them ready to be accurate with numerous rounds of ammo....
Thanks for the post on a new to you weapon that may need cleaning, but when I get in my truck that has been faithful for almost 300K, it is maintained mechanically, but I may need to clean the back seat out if I have passengers.
I do have a few 100+ year old specimens that I might just try it on for curiosity sake...or if they don't seem to be accurate let them go to another curator.
On a second note, I did find your post VERY interesting...and since it is winter time I may give it a try...If I get "almost a pound" of lead out of a pistol as shown in the first vid I will be amazed.