Bret4207
At the casting bench in the sky. RIP Bret.
But aren't we using a BHN scale?isn't it a Brinnell hardness number which comes from a known scale?? I opened this can of worms not meaning to, but hard is not always strong look at glass it's hard until the hammer hits it.
I can take a given alloy and produce 3 widely different Bhn factors. Or I can take 3 different alloys and, given time to play with it, produce the exact same Bhn factor. Bhn is one part of the story. Whats in the alloy, how it's treated, how long ago it was treated, what it does after sizing or HTing or HP'd all affects the end product. The more you get into this, the more questions you have and the more you question the "facts" that people give you. "HARDCAST" is the most ambiguous term in use in this hobby/art/science. It means absolutely nothing, yet it's the most common term you'll see in use regarding cast bullets. It's been a peeve of mine for at least a decade now.