This elk season my friend got to try out my rig and shoot an elk at 600 yards he loved it and is hooked. He's letting me put together a rig for him now and we are doing matching .280ai's but he is starting to get concerned. His main concerns come because ammo is hard to find and we live in CA. By 2019 we can only shoot copper for hunting and already in some state owned areas they have gone copper and then there's Condor zones. So as a reloader am I steering him in the wrong direction should he go another route. We've been best friends for years and I told him I'll set the guns up and reload all his ammo but I understand his concerns. Am I steering him in the right direction? Is there another long range copper round I'm not considering. Build components Rem 700 long action that he already has, Bartline 2b barrel, and a McMillan with Edge.