Hang in there people. I spoke with Jamison Brass today about a Sharps cartridge case and mentioned to the lovely lady that people were desperately needing brass for their '76 models whereupon she told me that they are tooling up now to make 45-75, 45-60, 40-60 & I believe 50-95 if I remember correctly. I would encourage you people to "pester" them (in a good way of course) about this brass.
Jamison International LLC
3551 Mayer Ave
Sturgis, SD 57785
(605) 347-5090