Trainee looking for casts of hook and scrape rifling

[kgarrison]

We are having a hard time finding examples of hook cut and scrape rifling in our reference collection.


Would anyone be willing to send casts out to California for a new trainee (me)?


Any lead on firearms that have this type of rifling would be helpful as well. I could tell our property people to be on the lookout as they disposition firearms.


Thanks!