Normally no wind in a tent. You are right that guns @ 3 feet have mixed results. I m not able to hit the central nervous system in the middle of the night even @ that distance. I've seen spray work and guns fail. I still believe if in a tent and awakened in the middle of the night your best chance of being coherent and effectively finding any device you would be best served with spray, but then again you may sleep lighter than I do and are a better marksman. Thanks for your reply though.