Home Forums Hunting & Shooting Canada Dominion Powder ?

Hi. In a nutshell, non-cannister grade powder is made for a specific purpose. Generally, for a specific cartridge, designed to be uniform and improve performance. The lot may be adjusted for a cartridge/bullet combination.

Cannister grade powder is sold to us for reloading and varies less in burn rate, lot to lot. That said, new lots should always be dropped back and checked to ensure they are not too different than your previous lot.

For non-cannister grade powders, you often see instructions like, "use IMR 4XXX data and reduce by 5%" or similar. Treat the 5% reduction as your starting load. With these powders, NEVER go to the book max right away!! These powders are usually blends and are slightly different.