This one might make the shootout at the OK Corral look like a video game.

On one side you have Philadelphia City Council and Mayor Michael Nutter.

On the other you have the powerful National Rifle Association, backed up by a lot of state officials.

They should just cut to the chase, stand back-to-back, take 20 paces, and come out firing.

Actually the Philly faction got off the first shot yesterday, when City Council passed five new gun control laws. Mayor Michael Nutter immediately signed them into law and told his top cop to start enforcing them. Apparently no one bothered to tell them that they may not have the power to actually enact such legislation.

They very likely will be reminded of that belief today by the National Rifle Association, which has vowed to go to court to have the new laws shot down.

Here’s what the new laws would do: Require people to report lost or stolen guns. This is a way to fight “straw” purchases of weapons that wind up in the hands of criminals. A bill to do this was rejected in the state House last week. This week they OK’d a somewhat watered down version. The city also wants to limit handgun purchases to one a month; allow the cops to seize handguns from people deemed a danger to themselves or others; and ban some types of semiautomatic weapons.

In a city that is fighting a life-or-death battle with gun violence, they seem like fairly common-sense measures. Except for one thing: A law passed in 1974 gives sole power to regulate gun sales in Pennsylvania to the state Legislature.

A cynic would mock the city effort to curb the number of guns on their streets as something that itself breaks the law.

Or at least is deemed constitutional.

You can pretty much bet this thing is going to wind up in court. Very likely sooner rather than later.