44-77 Sharps paper patched load

[J.B.]

Thanks for the measurements Eric. Sounds about right then. The rest of the case is pretty much in line with the their current gg chamber other than the as expected tighter neck dimensions to better suit ' patch to bore ' loading. On average my fired cases are .515" at the base, .509/.510 at the shoulder and the neck and mouth at .467". Case length dropped back a bit though and 2.241 - .2.247" being average. With that stepped out shoulder I guess the brass has to come from somewhere. Some rims are as low as .071 and others up at .076" . Having said that though, once fire formed and only neck sized, I've had no issues and very happy with the Jamison brass. Nice to see those photos of original cartridges too Kurt.
... Funny..just thinking those before and after shots Eric... if you didn't know what they were... could almost be .22 Hornet and a K Hornet
rgds.. J.B.