I learn a lot from you all, Little Joe. I'm not as young as I once was, but I'm old enough to know that age does not beget useful experience, per se.
FWIW, the rifle still shot pretty well. The variation below was mostly my fault... a heavy cross-wind yesterday made it hard to keep steady, and I'm not keen on the sights.
50 yards, .490" with square cleaning patches (cotton flannel) lubed with Lehigh Valley Lube, 50 grain GOEX 3Fg.
Tingle .45 Hawken-style sights... The brass blade was glaring somewhat. I used a Sharpie to darken it, but it was still reflecting light. The rear sight notch is just not conducive to a crisp sight picture, IMHO.
What is a good way to darken the brass blade? Anything that will adhere well? I don't want to modify it permanently, just darken it up.