Hi
Now turret keep shooting at terminal until it charges, that is wasting all keys in very short time. In previous versions i don't remember such behaviour, as i remember it made only 1 necessary shot to start terminal hack.
If it might depend on our quite big modpack tell me, i will double check.
Also Info about turbofish is missing in factoriopedia, like spoilage time and consuming effect.

Good catch, this happens since consoles are now immune to damage and I believe this is an engine bug (see https://forums.factorio.com/viewtopic.php?t=133736).
Depending on what comes out of it maybe a workaround is neccessary.

Workaround added in 0.15.2

Thank you for fix, it helped alot :) This is critical at early stage of game. Now this trouble still here for A keys, but those are crafted and are done at big output rate. If same fix can be added into next patch, it would be nice to see.

Hmm there is definitely a second problem going on, with both keys, but I can not reliably reproduce it.
Does this consistently happen to you with security keys but not with access keys?

I made some changes in 0.17.4. Let me know if it helped.

Sorry for delayed responce. I noticed that just once and reported. After your comment tripple checked access keys waste on 0.15.3 on our server and also could not reproduce that bug. Hoping for the best now.

Retested on older and new version. When i used on 0.15.3 quality keys, guns again were using more keys than needed, and i saw about 6 floating entities without visible body, but with quality of used key near console and pylon.
New version looks clean and works perfect.