Good reminder! The offending Brazilian ammo a couple lots of 1975 CBC in cardboard boxes of 25 labelled "REENGASTADO" or something close. It was too hot for acceptance, and sold to the Chileans. FAMAE pulled the bullets and stewed the powder. But somewhere the powder was adulterated with pistol powder. The reloaded rounds blew up Chilean guns. Somehow several pallets arrived in North America. It was cheap but blew up a couple guys' expensive machine guns. There is a recall notice for that year and that packaging. But ... if the ammo is in known white boxes of 20 with HPBTM 155gr bullets, it is Gold Cross properly remanufactured ammo sold for target shooting and quite good.
https://forum.cartridgecollectors.org/t/recalled-cbc-7-62x51mm-ammo/7719
Ganderite bought up all of that powder, after International had it broken down for components.
His explanation was that "a barrel of an inappropriate powder had been mistakenly added to the hopper during the charging process and wasn't caught in their random testing"
I had several cases of that SBC and it was indeed all in two lots, that overlapped each other's production dates.
There were several catastrophic failures, in Canada as well as the nation the reloaded ammo was mde up for.
SBC, out of Brazil reloads for most of the South American and even a few off shore nations.
I went through one of their facilities in Belo Horizonte'.
Huge place, where the fired cartridge cases come in on 24 wheeler trucks, rail cars and likely now, containers. Same goes for primers, bullets and powder.
Their processing facilities and the spectrum of what they do really needs to be seen to be believed.
Ganderite took all of that reclaimed powder and blended it together into one big safe lot.
He wrote a report on that here a few years ago. You might have missed it.
That's a lot of powder, even for Ganderite to use up. I have no idea what he did with all of it.
Likely moved it along to friends at very reasonable prices.
I bought up 20k primed brass and bullets at fire sale prices.
Shot up about 5k and sold the rest at gun shows.
The bullets were excellent for pulled surplus. Shot very well out of the M14 I had back then