Let me tell you first hand...
Olustee, Florida circa 1982-3 Battle of Olustee....
We (units) were given Powder rations to expend in the event.... course this was loose powder "if" your unit was small ),
And everyone pre rolled their own cartridges.
Now it seems, the size of the unit dictated the poundage, 10 = 1 pound, 20 men =2 pounds ( somthing along those lines )
Anyway there was Confederate unit, small maybe 6 men and their ration was given in styro coffee cup complete with styro lid
and a tin of musket caps.....
It was delivered to their camp I thing Friday evening.... no one claimed it or I guess need it so it sat
out all night ( this capped Coffee cup and tin of caps )
The next morning, this DARWIN of the guard, decided to say
" Hey boys watch this ! "and dropped it in the coals of the overnight fire.....
Complete with cast iron pot w/ legs..... he was expecting a
WHOOSH I heard from about 100 feet away a " NOoooooooooooo !" from a close bystander and
BOOM and I mean
BOOOOOOOOOOOOOOOOMMMMMMMMMMMMMM !the results was 3' foot Crater clear of any coals, ash, wood, I mean a clean white sand hole !
and a Shrapneled cast iron pot.... one piece passed through the baggy pants crotch of the closest Reb
Drinking coffee ... never contacted his family jewels
Two pup tents were peppered with coals and cast iron pot adding much air cond. to both.
the coffee pot was butterflied and strattled over a pine bow 25 feet up !
Firewood shards rained down 100 feet away......
after a safety meeting....
As I recall.... Darwin and his pards were invited to leave the event post haste by the Park Rangers.
Moral , BP and Campfire coals are a NO MIX !
Oh and they don't issue loose powder any more !