Ahhh, I didn't know this. I wonder why they just don't use a harder metal to begin with?
Don't say titanium - it's strong and light, but not easy to form. Good wear resistance? Believe it or not - cast iron is tough as hell. You want exotics like Inconel or Waspalloy? High dollar. Someone suggested depleted uranium which would be heavy as hell, but resists heavy artillery.
I'm making fun of you, Dave. There's a reason nickel silver has been used almost 100 years. It works.
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