Not all loading tables are on a common firing line. Around here they are mostly perpendicular to the firing line and facing a side berm. There could very well be a loading/unloading officer within the 170. Think of a table facing a side berm and the officer is standing at the end of the table to inspect your guns. That person is well within your 170.....so you can't make that blanket statement as well.
It would probably be better to say at the loading and unloading table make sure you don't sweep anyone when handling your firearms.