Graham

Greatness or originality always has its detracters!

Don't worry about it. The new Holland & Holland .400 Magnum also had a lot of detracters too. One has to develop a thick skin in discussing things on internet forums.

Do you have any specs on the cartridge, like cartridge length, shoulder angles etc?

Where are projectiles and dies available from? (just checked, same calibre as the .425 W-R)

I think an extended magazine a la the . 425 W-R would make the .435 quite a useful rifle.