Factorio Forums

I have upgraded a few artillery to higher quality, some to legendary, and although the graphic for their circle firing area is much larger they don't seem to actually be scanning in it for nests. I can leave it for hours and it still won't find any, but if I fly over revealing the map (and nests) within the circle range suddenly the artillery wants to start firing. Am I correct in thinking that the artillery should be looking for nests within their range even if the map hasn't been explored by radar or the player?

Thanks for the report. This is working correctly: those chunks/nests don't exist until you fly there or a radar scans them. As such, the artillery won't shoot at them.