Another interesting thing about cyanide case colors is that the colors seem to be more durable than bone charcoal colors. I don't think it's my imagination. I've seen a lot of cheaper guns like Hunter Arms Fultons, H&R's etc. that retain a higher percentage of case colors as bone charcoal pack colored guns with similar amounts of overall use and wear to the gun. My very first shotgun, a Stevens 220 hammerless single shot 20 ga. that I bought with my paper route money is an example. I still have it, and it still has very strong colors in spite of a lot of use by me and prior owners.
Is that a possible clue that some component of sodium cyanide... nitrogen perhaps... could be introduced to the crucible to increase the durability of bone pack colors?
