, I said one mile because if you move the original hive with the old queen in the artificial swarm all the flying bees will go back to the original spot, a lot of flying bees will be lost unless you move it only 3 ft or far enough away.
I moved a Nuc this year with my swarm in it around 25yrds away back to its original spot to unite with what ever was left in the old original brood box in the original position, it had too be moved otherwise i would have left it alone, anyway a hell of a lot of flying bees went back to the spot where the Nuc was and by the amount of flying bees with the old Queen i could see a lot where lost, and maybe robbed there way into my other new hive, another lesson learned for me..