The only x16rt miner for AMD is WildRig. On RX580 8GB you will get ~13-14MH/s, that is 2-3 coins per day. Of course, you need to check GPU, as this is only an approximate calculation. Maybe you will get higher speed and more coins.
And it never occurred to me that the veil could be mine amd gpu. Thanks for the advice. Now I will try to run.