Buckstix,

Most of my loading has been done with Reloder 15. 47 grains with a 270 gr cast GC bullet just about duplicates a factory load. 44 grs with a 300 gr cast GC works well.

I have found that VV N140 can be substituted although I don't know how much longer it will be available.

I have messed around with AA 5744 but need to do more work to get a clean burning load.

As I'm shooting these loads in a 1902 Webley and a Lee Speed I don't have to worry about regulation.

Graeme Wright's book is helpful on this cartridge. If you don't have access to a copy PM me and I'll give you his loads.