Sorry,

only just saw this post. Basically, I have 3 sources of brass:
- Bertram factory brass for no.2
- Reformed Kynoch, usually 500-465, but any such base will do.
- A bit of the last factory run of Kynoch, but they don't have any anymore

Very nice round indeed, my personal favourite BP round. I use it in 2 BP match rifles and a Martini hunting rifle.

FWIW, that trigger thingy - how 'bout a cocking indicator?