[Nickel Plated]

Personally I think this is better than the current law that will get you a felony just for doing it regardless of outcome.

I say make the warning shots legal and deal with the issue of bystanders or other property getting hit the same way it has always been dealt with.
If someone fires a warning shot and hits an innocent, charge them for that.
But if they fire a warning shot, noone is hurt, no property is damaged and the attacker flees. Then I see no sense of sending them to prison just on that fact alone.

That way there is room for judgement on a case by case basis. Did they hurt anyone? No? Fine, no harm no foul. Yes? Then look into that as it's own issue.

Never been a huge fan of mandatory sentencing.
Isn't the whole point of a judge to look at the individual circumstances and decide the sentence, if any, based on that? If we just have mandatory sentences for everything, then why hire all these judges? Just put the charges in a computer and let it crunch the numbers on how many years each charge "requires". Efficiency.