I did some searches but I guess nobody's using this stuff, probably a reason for it? I know BH209 is the gold standard, but I'm curious since I can't find it in stock anywhere looking for 8 months now and need a new credit card to pickup a 1/2 lb of it what the next best options for loose powders are. This stuff claims it's not very corrosive and it's clean. If I can't get a hold of BH209 I would most likely to to 777, curious if anybody have any data or opinions on how corrosive the Shooters World Multi Black is compared to 777?