+They will most likely charge you even if it is just 1 shot, but charges do not mean mean conviction, also Da often press many charges in hopes that anything sticks, they often do not examine cases before pressing them, and it is not that unusual for them to be dropped later, assuming you have a good lawyer, cuz if you use free trial lawyer, you're screwed, they really are that bad, they have dozens if not hundreds of cases at any given time, they do not get into details of any of them.
Another thing that works great public pressure, even ultra woke DA in Manhattan, who charged 2 people during self defense, 1 with murder charges, had to drop them due to public pressure,
... in the interim of the whole thing, your firearm(s) will Not be in your possession.