21:1A-133. Permits for manufacture, sale, storage, transportation or use of explosives
http://lwd.dol.state.nj.us/labor/lsse/laws/Explosives_Law.html#1a133
(e) To use
A. No permit shall be required for the storage, transportation or use of smokeless powder which is used by private persons for the hand loading of small arms ammunition and which is not for resale. For this purpose not more than 36 lbs. of smokeless powder and not more than 5 pounds of black powder shall be stored or transported without a permit.
The pics show over 100 pounds of smokeless and about 30 pounds of Goex black powder.
He appears to enjoy shooting and reloading, not bomb making.
So could you divide where you stored it into ownership for each member of your family? So that a family of four could own the limit each?