Powder type
Another point should be raised, based on observations posted on the Double Gun forum. After trying all the variables of bullet weight and type and powder granulation & charge, sometimes one just cannot get regulation with Goex, Schutzen, etc. powders because the original cartridge was loaded with a case-full of a hotter sporting-grade B.P. In these instances, a number of shooters have found that one of the granulations of Swiss powders can produce a regulated load. The problem then is, who carries Swiss B.P. in Canada?
Regards,
Joel