The Pritchett is an industrial product as a complete ammunition system, not just a bullet. Home hand making requires much care and the originals were industrially made to fine tolerances and close quality control. They were factory made by the many, many millions for military service, despite the extra cost over the Delvigne Minie or Burton. The military wanted a reasonable but consistent accuracy and the Pritchett gave them that together with a constant rate of fire in all weathers from ammunition for as long as needed whilst it had to cope with oceanic sea voyages followed by bullock cart travel over weeks. Hence the care over their packaging as well as production. Brett Gibbon's fine made Pritchett ammunition displays his clear knowledge and considerable investment to make a factory standard cartridge in a tiny company. Everyone I have ever known who experimented with making their own have had a long learning curve to get factory standard results. However, the accuracy of a well made Pritchett does not do badly but I suspect that it does not stabilise as quickly as a Burton. But then the military did not need button size accuracy at short ranges.
Look at
https://www.papercartridges.com and FTG Military History and also Paper Cartridges on Youtube.
A good Burton is a worse military choice, but for the few rounds for hunting and target competition, the Burton will give superior accuracy (until it fouls up after a few rounds). Horses for courses. If I want to hunt a deer or compete at a target when I need few shots I would certainly choose a Burton. Were I equipping an army I would unhesitatingly choose a Pritchett.
OT but the 1:78 slow twist Enfield is ideal for a short range Forsyth rifling type patched round ball too.
