Would a 9mm pistol round bounce?

[Saurdaukar]

Not sure why you're laughing.

John unloaded his entire clip into the car as it backed up and not one round did in fact penetrate the windshield...and this was with police loads.

[Angus]

sloped armour rocks 

[Die Hard]

I'm laughing because I've shot through the windscreen of an old junker with a BB air rifle. Anyone who claims a normal (i.e. unarmored) car windshield or door panels will stop a 9mm P is seriously full of toejam.

[Saurdaukar]

I'm laughing because I've shot through the windscreen of an old junker with a BB air rifle. Anyone who claims a normal (i.e. unarmored) car windshield or door panels will stop a 9mm P is seriously full of soup.

You've got a second-hand account from a LEO above, which I quoted.  Ive got several similar accounts; both first and second hand.  

Not sure what sort of BB gun you were using and whether or not it may have been equipped with the rare "Lightspeed Muzzle Velocity" option but, under real world conditions, a 9x19 is insufficient to reliably expect windshield penetration unless you care to stand on the hood and fire straight on at a distance of three feet.

This is one of the primary reasons that the .40 is adopted by most law enforcement agencies.

No soup here.  What have I to gain?

[Die Hard]

The Buick of truth:

http://www.theboxotruth.com/docs/thebuickotruth.htm

[Angus]

 

Just about what I'd expect. So I guess I won't have to shoot my Volvo.
Wait a sec though, it's all about the 100 m.....

BTW weren't some WWI rounds (Spandau?) 9mm, or were they heavier?

[Saurdaukar]

The Buick of truth:

http://www.theboxotruth.com/docs/thebuickotruth.htm

Blocked for me at work.

Cliff notes?

[Die Hard]

Blocked for me at work.

Cliff notes?

Firearms tests against a car.
        
        #1 - Windshields Inside/Out
        #2 - Windshields Outside/In
        #3 - Pistols and Car Doors
        #4 - Rifles and Car Doors
        #5 - Shotguns and Car Doors
        #6 - Concrete Blocks
        #7 - Engine


Check it out when you get home.

[humble]

Your issues here are pretty simple. He's right on top of the car firing at a slight downward angle. Great for a "test" but not very realistic...1st if the car was coming at him he'd be roadkill. From a more realistic perspective your going to seek to make yourself smaller if you sense the possibility of return fire. I'm not a LEO but I've shot with enough of them and trust me the natural "shooters crouch" is second nature to all of them. So if you increase the range slightly and alter the angles what you'll get is a combination of spalling on the inside of the glass and grooves on the outside as the projectile slides up the windshield. Now if in fact your close enough to be firing down on the glass you'll punch thru....but at 25 ft in a combat crouch it's much more likely you'll just scar the glass...

[Die Hard]

I don't believe so. Show me some proof if you can.

[humble]

I don't really care what you believe but next time you see a police officer ask him what his training is with the regard to the subject. Shooting at a car is an almost verboten reality. If you shoot low at the tire you get ricochets off the road surface. If you aim at the bulk of the vehicle you get ricochets of the glass and potentially the bodywork...either way generally bad news in an urban setting. Going further you can reference the FBI shootings in Miami that really sparked the move to a heavier cartridge. The ballistic realities are what they are, I love my 9mm and my concealed carry weapon is a .380 Sig P230 but neither is going to punch thru a car windshield or frame...

[Die Hard]

No one ever took pictures of pistol bullet "scars" on a windshield?

You may love your 9mm, but you are underestimating it.

[Chalenge]

A few years back the Atlanta PD had a run in with a suspect that tried to run down officers with a SUV. The suspect was fired upon over fifty times with 9mm and none of them penetrated the vehicle. The SWAT team used .40 (medium velocity) for another 40-50 shots and .223s and only 2 or 3 fragmented bullets hit the suspect. Finally the suspect was hit five times (on foot) with 9mm and made an escape anyway on foot. A .45 killed him with one hit.

Make what you will out of that. 

[Die Hard]

Still no pictures or first hand accounts, only second hand stories... or more like tenth hand.

[Widewing]

a plane moving however fast is not necessarily moving at all relative to another moving plane ...

200 yards is just not that far when discussing ballistics ...

period.

For a pistol round out of a 4" barrel; 200 yards is a very long range. Not much energy left. You would be fortunate to penetrate the aircraft skin. Ball ammo would likely do little more than dimple the aluminum if there was any understructure.


My regards,

Widewing