Hi,
"The Handloaders Manual of Cartridge Conversions" page 870 has the following info:
Cartridge introduced ca. 1888. Bullet dia.: .318". Bullet weight: 175 grains.
"Cartridges of the World" 4th. edition, page 264 is listed as a source for additional data.
Make from: 9,3 x 74R.
Cut this case to 1,7".
Anneal and full-length size with the expander removed.
Ream the inner diameter of the neck.
Trim to length, chamfer and full-length size again.
This should produce a case 1,66" long. The loaded cartridge length is 2,28".
Both the 9,3 x 74R and the finished 8 x 42R uses RCBS Shellholder # 26.
We have a supplier here in Norway called:
www.hjemmelading.noHe lists three different brands of 9,3 x 74R:
Norma (comes in boxes of 50ea.), price Nkr. 950,-
Partizan (comes in boxes of 20ea.), price Nkr. 250,-
RWS (comes in boxes of 20ea.), price Nkr. 425,-
https://www.hjemmelading.no/categories/93x74rHope this info helps you along!
Sincerely,
Cap'n Redneck.