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I do think you could glue a paper tube to the ring second up from the bottom on the projectile you pictured without it breaking off from the tube. Perhaps even higher up since you said the projectile went into the barrel's rifling only up to the topmost first ring. That leaves you all the other rings to glue to, even if you don't glue to the very bottom of the projectile.
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Therein lies the problem. Finding something to form the cartridge paper around that is the same size as the bottom ring. I tried forming one a little bigger than the bullet but it came out too big to fully load into the chamber and the powder bunched up. For best results you need a hollow tube that the base of the bullet fits into snugly and is the same size as the bottom ring (the other two rings are smaller) so you can roll the paper around the bullet and the form together. It is exceedingly difficult to try to roll a cartridge around just the bullet and keep it anywhere near concentric.
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I'll find the research myself. If your research only consisted of people at forums writing, it probably didn't get into the precise lab science explanations I was seeking anyway to determine if it causes any overpressure safety concerns with heavy charges. Although sometimes there are some bonifide lab scientific results pressure scale data that is posted at online forums.
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Good luck. In several months of searching I didn't find anything like that but maybe your google fu is better than mine.