Factorio Forums

For some time, I've noticed artillery is firing from the most distant artillery piece to the target. I could have an artillery placement 100 tiles from a target, and it will fire from 600 tiles away when both emplacements (and a few more in between) are available and loaded. This problem occurs when manually firing. I'm not sure how auto-targeting is affected.

If it was randomly chosen, I could understand that, though I would expect the closest artillery piece would fire.

Thanks for taking the time to write up the report.

This is not a bug. Put put a targeting flare down and it gets shot at, that's all that matters.
Which one shoots depends on entity update order (which in general is per chunk west to east, north to south)