DuncNZ
54 Cal.
You are quite right , I have only ever made one batch of match and I did lay it flat , I put too much Potassium nitrate not chloride ( brain Fuzz) . The cord turned out all fuzzy with crystals , so I washed it and dried it twice more until the crystals disappeared and the match burnt nice and slowly . I still have about 9 feet of it , so I won't be making any more for a while . I know one guy who just soaks hemp rope in a water /black powder solution , Not for me .… they say it is best - more uniform & consistent - to lay it flat to dry, otherwise it ‘run down’ and turn into a fuse.
I have used a Rudyard made snapping match lock with a .40 cannon-end barrel , it was a great gun to use and very accurate , the local Boy Scout troop all learnt to shoot with it before they learnt to use a .22rf .