Well I would say no witness needed, as mentioned before it dosen't really matter anyway, someone can cheat either way. As far as shooting alone, I would be able to use my scores I shoot every week in the league anyway. But for those who do not, and may shoot alone. You could go the http://www.bullseyepistol.com/ and download the range commands, and record them on a cd, cassette, micro cessette etc... and play them back so you can do it without a range officer calling the line. Or you could even just use a "egg timer" for timed and rapid fire. not the best way, but again this is for fun right? And it will work, and doesnt cost hardly any money.