Order a Flintlock Hawken from Track of the Wolf from Investment Arms (Lyman flintlock Great Planes Rifle) in 50 or 54 caliber. 54 caliber would be better as they hit harder and are more efficient. Do not attempt to make black powder unless U have done your homework very very carefully. I would say do not attempt it. Yes U can roll yur own ball. I do it all the time. get yourself the mold from Track in the right caliber (50 or 54) buy 100% lead from a local metal scrap yard, get yourself a lead pot and ladle and yur in business, A Flintlock rifle does not require a PAL it is not deemed a firearm in Canada or the US. U can have it shipped directly to your home address from Track of the Wolf in the States. The Lyman Hawken is one of the best ready to shoot none custom black powder firearms U can buy. I own two and they are both tack drivers off hand at 100 yards with primitive iron sights. U can order the Great Planes rifle in two styles. Rifling for patched round ball only, 1 in 66 inch rifling twist, or rifling for bullets only in 1 in 32 inch twist, (Great Planes Hunter). I have both rifles. The Great Planes Hunter 1 in 32 twist is a real thumper. U load er up with 120 grains of holy black with a 450gr bullet and it will kick like a sideways mule it will knock over a 1200 lb buffalo, no problemo my son. Tame it down with 90 grains and U can shoot maybe 10 rounds before it gets down right unpleasant. The Great Planes Patched Round ball shooter hardly kicks at all. Load it up with 90-120 grains black powder and it will kill anything in North America at 100 meters or less. I would caution U about getting into muzzle loaders. It is too smokey, dirty, addictive and just too damn much fun. Cost for a new flintlock Great Planes rifle from Track of the Wolf around 600 bucks or so. Hope this helps. any questions U can PM me. Been shooten front stuffers for about 10 years now.