@CraigVMN ,really my dear fellow flyer,300ft and cant see your drone ,with all due respect maybe a visit to an optician might be in order i have not got the most amazing eyesight ,but i can see my Mini drones up to at around 800ft ,and my MPP up to about 1200ft
the fact that the drones range is promoted by the manufacture's,is purely what could be possible in perfect conditions ,and is similar to the way that vehicle makers give a range that the vehicle could go on a full tank ,its never really numbers that could be achieved in real world conditions
the VLOS distance rules are of no interest to the drone maker ,its you the pilot who decides whether or not you want to follow them ,but there may come a day, when distances from the pilot , will be arbitrarily enforced ,and the drone ,will just not go any further ,and that would be unfortunate ,VLOS is different for each individual pilot ,dependant on their vision and the flying conditions affecting visibility