NSSF is springing into action, as the public comment period opens on EPA considering a regulation that will ban all traditional lead ammunition. This would basically end the shooting sports as we know it. Remember this is a no-win situation for us, because bullets made of materials other than lead are often considered armor piercing by law. Copper is your basic material, and copper is expensive, and has much poorer performance properties than lead.
Contact info for EPA and the administrator here. Yell at your congresscritters, both houses, NOW. LOUDLY.