Mike,

I am a late entry into this discussion. I have a "guild" double rifle marked 118.35 and with case dimensions that appear close to the 9x58.5r S&S hat I saw on another forum.

Initially, I thought it was a slightly short version of the 9.3x65r as the case appeared to be 60mm long with the neck dimensions the same as the 9.3x65R Collath.

I assume it is an old black powder load.

Would the load be the same as the 360 BPE cartridge?