I have recently got this old H&H double express rifle from 1883.It is a C grade gun. Has been with an english officer in India, and also on safari in Afrika. It is recently BP reproofed in London.
I have tried some 340 grains bullets with lube, but it doesnt like them. Then I have made a m ould for paper patch bullets, and can make them in any weight from 200 grain up to 550 grain. It regulates fine with 400 grains PP bullets. Charge 70 grain Rhino 11 (Norma 201). CCI magnum primer COL 87,5 mm