I messed around with "quills" quite a bit in the last few months, and came up with something that is easy and works good.
I mixed up a black powder, water and isopropyl alcohol up (50-50 on the water/alch) to make sort of a thin paste. I mixed it in a plastic margerine container. There was a 1/8 inch hole inthe top of the container.
I dropped in about 4 feet of cotton string that was about .10 or so in diameter, had the end coming thru the hole in the container top, put the top on. shook it a bit (not hard, or the string will tangle), let it sit for a minute for the paste to soak in, and then slowly drew the string out the hole.
You will get a nice, uniform BP soaked cotton string out of the hole. Hang it up someplace by the end and get another piece of string... repeat untill you get bored or run out of places to hang string.
Give the strings about 3 days to dry before you take them down and try to work with them. You can cut them into managable lengths and store them in a cardboard or other tube (PVC tube maybe?). I am storing mine in a surplus PVC rocket tube, as it has a screw-on, o-ring equipped wateproof cap.
Now that you have your "match", you need to get some 3/16 OD paper straws (this is why you drilled a .200 hole, right?). Check previous postings or the "supplies" thread. I got mine in a box of something like 1800 of them about 18 inches long for under $40. That is a lifetime supply I think.
You will have to experiment with length based on your gun, but here is the idea :
The parts:
The part assembled:
The parts installed:
It lights easily with slowmatch and a linstock, and it burns damn fast.
I know some have played with a straw filled with 4F. This is solid string, so it is was less messy on the range.
The whole affair blows completely clear on my gun. The string and straw will still be smoldering, so make sure they don't go someplace that smoldering stuff doesn't belong.
Rick