Originally Posted by digital_blue
You shouldn't need a license to buy powder cause it is also used in flintlocks and other non-PAL firearms. Oh and a 5.7x28 cartridge would be illegal to possess so if you are machining some, do not put any powder or live primers on it... If you really want some, get someone down in the states to send you some spent casings and at a later date, send you some bullets(If it is legal to do so)....
err since when exactly? Civi variants of the P90 (which uses the 5.7 cartridge) are available for sale, and use in Canada.
Edit - Addition - Though 5.7x28 isn't exactly cheap...