Hello:
I have a pretty Auguste Francotte double in 450 BPE, 1921 vintage. It is very light (7,5 pounds), it has Belgian nitro proof marks under the barrels but no charge indications. The bore is in good condition, the rifling is of the "normal" type. In "Cartridges of the World", the authors state that the NFB versions loaded up to 55 grains of cordite.
I need some indications about loads for it, with smokeless powder, and the pressure levels this type of cartidges were designed for. I have tried to find the Graeme Wright book, but it looks it is sold out. Could some of you give me some starting point, or some of the information there is in G. Wright book? I want to shoot 300-350 grains jacketed bullets.
Thank you very much from Madrid, Spain.
