@Wild_Violet23@liambyrnemp The amount of powder is limited by law - in excess of the level and they become ordnance. Sellers need a local authority licence. They're not crap - even the quality brands get them from China. (I used to sell them!)
@ben_m_somers Even 50+ years ago at a decent Grammat school we were almost never told WHY the things were were taught were in any way useful. After leaving we discovered that whilst some were, many were not.