It is legal to purchase Pyrodex or other similar non black powder propellents - without a firearms licence. It lasts reasonably well if stored correctly and is safe enough.
A small unconfined amount can be used to start a fire. This was commonly done with black powder in days gone by. It is also useful for other applications.
A small unconfined amount can be used to start a fire. This was commonly done with black powder in days gone by. It is also useful for other applications.