OK well I go to the Dollar Tree store [everything costs a dollar] and buy a hard-back book. Then I remove the "book paper" pages, and turn them into cartridge papers, and yes, you do need the / angle on one of the four sides to make the tube roll into a cartridge with a wooden dowl "forming tool".
I make blanks. When I'm hunting with shot I also make cartridges with newsprint paper, to hold the shot. So I tear open the powder-cartridge, dump the contents down the barrel, then I invert it and ram it down on top of the powder. I follow this with the newsprint shot cartridge intact, untorn, and I seat this with only a firm ramming against the wad I just formed from hard-ramming the book-paper cartridge tube down on top of the powder. Then I cap or prime the piece. This really cuts down on the reloading time when hunting upland birds with dogs or when dove shooting, especially when you are the only one with the caplock and all the other hunters are using modern guns. I'm still working on paper cartridges that will hold the shot into a tighter pattern.
IF I'm doing round ball, I load the ball into the book-paper cartridge with some twine to cinch-up the paper around the ball, where the ball meets the powder. So I tear that open, pour, then I put a lubed felt wad down on top of the powder, followed by the ball still inside the end of the book-paper cartridge. I tear off the extra bit of the cartridge above the ball and discard it before ramming the ball. I think this is more consistent than using a cloth patch.
LD