In gun season I would say you can definatly get away with it more so than in bow, but the key being that you are careful to make little noise. Lets face it if you have a good spot you always risk spooking deer. I always like getting in early and getting settled in before daylight I think you have a better chance that deer are bedded down in dark than at daybreak. Also in full camo leaving tree stands at night I've walked out into fields when it was pitch black knowing there were deer there but couldn't wait any longer for them to leave and had them woof at me before they ran off and even though it was pitch black and I could not see them I know they were close. So my point is it is definatly to your advantage walking in at dark.