I went to see another collector I know yesterday. I found this .32 S&W Long round with a knurled rim in a box of trade stock rounds.
The case also appears to be slightly necked. The rim is knurled with vertical lines, but these are difficult to see in the photo. They are more visible around the edges of the head in the headstamp photo. The bullet is a CN FMJ. I apologise for the poor quality photos as they were taken with a phone.
What is the story on this cartridge?
Thanks for any info.