Source for Annealing salt?

https://www.hubbardhall.com/chemical-applications/heat-treatment-salts/

Might give the above listed company a call to see if they have anything that mirrors the salt Ballistic Recreations provides. The below listed quote/salt description was was taken directly from Ballistic Recreations website.


Predominately a blend of potassium nitrate and sodium nitrite, this salt closely matches the old MIL-S-10699 Type I heat treating salt used by US government armouries for heat treating metals including copper alloys. Ideal for annealing and stress relieving of cold worked brass cartridge cases, the salt melts at 142°C and can be used up to 590°C.
 
Thank you all for your input. I'm really wanting to try salt bath Annealing and I really liked what ballistic recreations had to offer, but apparently they've become so popular they can't keep anything in stock.
 
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