On amazon they have bullet grade HBN for coating bullets much cheaper than what Tubbs is selling his kits for.
This is for 1#
http://www.amazon.com/gp/product/B00BM8KM20/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
If 1# is too much they have it in 1/4# also but the value is in the 1# containers.
http://www.amazon.com/Hexagonal-Boron-Nitride-Powder-HBN/dp/B00BM8KMX4/ref=sr_1_2?s=industrial&ie=UTF8&qid=1410837511&sr=1-2&keywords=HBN
This is for 1#
http://www.amazon.com/gp/product/B00BM8KM20/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
If 1# is too much they have it in 1/4# also but the value is in the 1# containers.
http://www.amazon.com/Hexagonal-Boron-Nitride-Powder-HBN/dp/B00BM8KMX4/ref=sr_1_2?s=industrial&ie=UTF8&qid=1410837511&sr=1-2&keywords=HBN