Period correct '74 Sharps Buffalo Rifles?

[Kurt]

My Jamison rims for the 77 run .075" Just send them a case or two and they will set the headspace for those cases.
Before Jamison I used Bell .44 basic brass and those rimes ran from .082 to .084" and at that time Shiloh cut the rim reses at .078" even that was no problem. The close once I just figure 8 them on some 220 grid sand paper or if I had a lot of new cases I used the lathe and re cut the primer pockets either for rifle primers or pistol primers.