A 48 twist is gunna be a challenge.
Copper colored spray paint is always an option.....lol.
I can't imagine how frustrating it is to live in a place where all the sudden you can't use what you've always used. In this situation, it could be very difficult to get anything copper to shoot well. I've seen some 48s shoot sabots or conials well. But it's always a short conical or saboted bullet. Copper is light so they are longer which means stabilization issues are likely.
Good luck. I really don't know what to recommend.
