You might try doing a search for EURENCO, how we go about such things over here----we have retailers/suppliers/and manufacturing of propellants, they offer us some ballistics and recipes they have proven to be safe for a specific purpose.
That propellant came from somewhere, start out there or wherever the trail to test results leads you. I've never seen any of it in alot of years of loading.
i know its probaly a bit late (2 years to late ) but if you can get a copy of cartridge loading by david garrard on page 96 he lists 2 loads for jk6 bofors powder . if you can not get a copy of that book get in touch and i will send you a copy of the loads. by the way where in the uk are you i,m in south wales.
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