I'm not saying this to be critical of your stitching, just the opposite in fact. I want to encourage you to keep up the good work while making it easier and carrying it further.
The most useful single source of info I found for sewing leather is Al Stohlman's classic book
The Art of Hand Sewing Leather.
Cheap at ten times the $14.99 price tag, in terms of the new stuff you can do and the ease it will bring into your work. I even make cylindrical hard cases for camera lenses with nesting lids using his methods. Made a few briefcases too with square corners and all. Not saying any of that has to do with traditional muzzleloading gear, but it tells you how far the book can take you in all sorts of directions while really setting your feet on the ground for the basics.
Long as I have you directed to that site, check out
this awl. I'm real fond of it for it's small size and those flat sides on the handle. Seems like a small deal, but the flat sides are real handy for helping you orient the blade, as well as for keeping the blooming thing from rolling off the table right after you sharpened the blade. Saves on pierced feet too, even if it doesn't manage to hit a cement floor point first! :rotf:
And speaking of awl blades, there's a whole lot to sharpening them. Do it right and they pass through leather like butter, but do it wrong and you practically need a hammer. Easy piercing makes it lots easier to keep holes straight and saves on bloody fingers on the back side when a dull awl suddenly jumps through the leather. :rotf:
There's even a
hand stitching kit with the book and an assortment of tools on sale for $55, if you want a wider set of tools than just an awl.