Black MZ, Shockey's Gold and APP are all product logo name of American Pioneer Powder = APP
I use Shockey's Gold as this was carried by Sportsman's Warehouse before it closed it doors in it's North Orlando location.
But I managed to buy some of the remaining stock with an imposed store limit.
What I understand is the granulations are a bit different , my Shockey's Gold 3 FFF
the one can I have of Black MZ is somewhat courser say 2.5 FFF
The stuff is hydroscopic ( not nearly as bad a Triple 7) but still you want to clean you guns throughly with soap & water.
Clean your cases too....and I suggect ASAP ...
You need no Lube with APP, SG or MZ ..I'll repeat no lube, it makes is own , that does not mean you can't I suppose , but you need not !
I use SG in my original 73 Winchester 32WCF , I like it full case lighty compressed under a Hi Tech coated .311 bullet.