Shockey's Gold is made by APP (American Pioneer Powder).
APP used to make Pinnacle for Goex before Hodgdon bought out Goex and canned the deal.
Pinnacle is sorta/kinda like 777. 777 uses Gluconic Acid (oxidized sugar) in place of sulfur, Pinnacle used Ascorbic Acid (basically vitamin C) in place of sulfur.
Pinnacle was a slightly modified formula from "Clean Shot" which Hodgdon sued out of existence.
Anyhow, Shockey's Gold is "most likely" the old Pinnacle formula (perhaps tweaked, or not) and marketed as APP's superior powder substitute (their answer to 777).
Although there seems to be a little better quality control on the granule size compared to their other "subs", if you pour some in your hand it still resembles the gravel in my driveway compared to either real black or even the Pyrodex powders.
This stuff is targeted directly at the "non-side hammer shooters" who dump loads of (faux) powder down the barrel and chase it with a plastic wrapped pistol bullet believing the ads (and internet scuttlebutt) that claims you can get CF results in a plastic stocked ML.
(sorry, did that sound sarcastic?)