There definitely are some ‘built in’ challenges as a North American visitor when hunting with a traditional flintlock muzzleloader on the Dark Continent. In addition to the at times classification of real blackpowder as unobtainium, I was informed of minimum energy or footpound requirements for Namibia hunting (although I have been there, I did not hunt in RSA, and do not know their regulations) by my outfitter and a number of folks at SCI shows. It seems to be legal you need to be at 2000 foot pounds of energy at the muzzle minimum for most plains game (game the size of duiker or springbuck for example, only required1000 foot pounds). That meant I needed to launch a roundball out of my 62 caliber gun at about 1670 fps, requiring 110 to 115 grains of 3F Swiss, a bit hotter than I liked. If one desired to hunt buffalo, that 62 caliber roundball would need to leave the house at nearly 2400 fps to get to a 4k foot pound minimum. Did not seem to be a good idea, at least to me, nor did I attempt figuring out such a load, as most of the fun was gone before I reached 100 grains of powder and 1700 fps. I am guessing all the 45 caliber roundball hunters using 60 grains of powder that can kill anything on four legs can stay home, or maybe line up and argue. But remember, their country, their game animals, their rules.
In all honesty, hunting in Namibia was a great experience, even if I had to the use a 338 magnum instead of a flintlock after the promised real blackpowder didn’t materialize. If you have the opportunity, do it. I’m considering another trip, still have a few critters on my ticket I need to punch.
And while not relevant for this discussion, at least at the time I went, it was bottom line less money for an African plains game safari for multiple animals than a Rocky Mountain elk hunt, not to mention the cost of a Kodiak Island adventure.