Contained compressed charges, you may be right, but I don't think so. It burns different. Fast, but not efficient, or hot as smokeless hense the reason for powder spewing out on fire. Do yourself a test. Pour a thin line of H1000 on a sidewalk. Then pour a thin line of Goex on the sidwalk, For reference, pour some Unique down as a third line. Light them all and I bet the BP will race like a snake on fire but the smokeless will be much hotter and take its time. Maybe a few seconds.