Volleys do 240 on direct hits and 228 if the mines are walked over now. It's also not possible to detonate your mines by shooting them with more pucks, but ones you've laid on the ground are still destroyable by other players. I think Civ was pretty broken in its previous state, but nerfing its damage that hard while also making it much more difficult to do damage reliably seems a little excessive.
More generally, I'm also curious if stealth changes are going to continue to be a thing in the future especially if they're more subtle adjustments than this that are hard to detect intuitively.
Edited by JeffMagnum, 02 June 2017 - 11:24 AM.