That's another terrific old southern rifle you have there, @52Bore . Thanks for bringing it out!Your pointed tang is like my William Douglas rifle (Cocke Co. TN). Although you have 2 screw holes.
Unfortunately, your trigger bow shape isn’t like my WD - so doubtful it’s by him.
Nothing on the top of the barrel?
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We have four old Tennessee rifles in the family collection (not in my personal possession, though), and if my memory is correct, two of them have pointed tangs like that. One of the others has the classic "lollipop" tang that traverses the entire length of the wrist, and I think the fourth one has a rounded end on the tang. The next time I get over there, I want to pull those out and look them over again.
Notchy Bob