A year ago or better I ordered 100 38-55 2.125" Star-line cases from Graf & Son's & 100 of the Jamison 38-55 cases from Buffalo Arms for comparison.
38-55W new manufacture case comparison
Star-line 2.126" +.002" average OAL, neck thickness .006" + or - .0005" or less" max, weight 135grs +1.5grs, rim Thickness .055-.057"
Jamison 2.115 + or -.005" average OAL, neck thickness .009" +.002", weight 113 to 115grs, rim thickness .058-.060"
I bought 100 more of each, they are both high quality manufactured brass cases, I will use the Star-line in my original length long chamber rifles and save the Jamison for modern short chambered 38-55's and 32-40 rifles, after sizing and trimming them to the correct length to fit the chamber.
Have purchased from Graf's for years with great satisfaction and very high quality service, plus that "CHEAP"
online shipping.
MIKE-T