Now that I have the Creedmore type sights on the High Wall, and some ideas towards it's parameters regarding loads... it's time to get more serious.
Here we have two sets of ten cartridges, each roughly identical but for the bullets used. The cases were worked the same, primed the same, and loaded with 60 grains of Pyrodex RS (42 grains by weight). I'll try good true black powder when it's available back on the market.
10 are loaded with Lyman 457658 480 grain pointy flat based bullets, and the other 10 are loaded with Lyman 457132 535 grain roundish nose flat based bullets. Both types of bullets are sized at .459".
That leaves me room for two careful groups with each bullet.
If the heavier Postell style bullet wins the toss, then I'll order a mold up before the week is out.
The 60 grains (by volume) of Pyrodex RS seems a happy spot for this rifle. Not so heavy that it hurts, but enough oomph to get the big bullets into stability territory. It almost fills the case, and only requires a bit of tapping and some light compression to make the load. No drop tube or fancy voo doo necessary. The 60 grain load also showed me the best accuracy when I was puttering with the old Buckhorn hunting sights. A 69 grain load gave no better accuracy, was trickier to get in the case, and gave punishing recoil.
Anywho, it's a good starting point.

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