Another question comes to mind (I have many more questions than answers as you can see.
).
Would adding silver into copper being cast reduce the amount of oxygen trapped inthe casting? I know this is a real problem with pure copper when cast.
This could offset the cost of adding silver to the cast alloy if it made it easier to hold down the trapped oxygen as compared to pure copper.
Market is hanging aroung $5.00 per ounce for silver.