Hi there! Sorry it took me so long to respond, the mod portal didn't notify me of this thread for some reason.
That's a really good idea that I actually played around with for a while, but ultimately gave up on as it was causing some ammo to be upgraded incorrectly and I couldn't figure out why. I'll take another look at it for the next update though and see if I can put this in!
On a side note, my next goal for the mod is to implement a full ammo filtering system, so certain turrets only get certain ammo, etc. I just can't decide if it should be location based or type based, and how it should work with copy-paste, blueprints, etc, but hopefully I can get those things worked out soon and put that in.
As always, thanks for interest in my mod and let me know if you have any more suggestions!