Brought to you, by none other then the Block man DOO...
 
Here are 3 shots fired into a prototype of my GTX 580 classified waterblock:

 
The closest it came to penetrating is the small lump to the left of the thermal paste:

That area is about 1mm thick btw...
 
The 1/4" thick polycarbonate top removed:

Shows the other side of the polycarbonate
 
The direct impact:

 
Here the projectile is moved, shows next to no marring:

 
Caliber: 22 LR
Distance: 2' from muzzle to impact.
 
I was slightly terrified of a ricochet, so I was hiding behind lots of stuff (cause really- stuff like this is a candidate for the Darwin awards- DON'T DO IT AT HOME) and I had my IBA and Kevlar helmet on.   I have somewhere on 25 years of firearms experience and I calculated some ricochet trajectories and kept the caliber small. 
 
I may work up the nerve for a 9mm test, but I honestly don't see the results to be any different, and I may be pushing the Darwin award a little more with a larger caliber.  I was interested to see the projectile contained in the area between the polycarbonate top, and the metal body itself. 
 
Other then that... I thought it was pretty sweet to claim a new title

Youre making it harder to shoot my 580 when it crashes.
Although the 357 may work....................
(Wait..............I dont even have a 580 yet, what did i just shoot outta my computer?)

I think your definition of bulletproof is a little self serving. It pierced through the polycarbonate without a problem (what a shocker!), which effectively ruins the waterblock. I'm probably bulletproof too against a .22LR, seeing as the bullet probably wouldn't go all the way through!  What's bulletproof is what appears to be a 1\2" aluminum plate. 
 
Why on earth would you shoot it from 2'? You obviously knew it was a bad idea at the time, so why would you still do it? I don't think shooting it from a sanfe distance really would have changed much. Somethings are just better left not done, like shooting metal waterblocks at less than arms length 

I don't think it will sell. I've never even seen a PC at a shooting range. It's still a novel idea for the hot-tempered gun enthusiast PC Gamer though. 

Another 'first' for the EVGA forum

PanzerMensch

umm, just curious as to why you would do this?

It's coming right for us!
 

PanzerMensch

umm, just curious as to why you would do this?

why not?  Has anyone else done it?
I  was waiting for my machine to finish another block and I always wanted to do it.  The polycarbonate held together and didn't shatter like regular acrylic topped blocks.  Not saying other blocks won't fair similar against a 22, but until someone else does it... You saw it here first

ROFL, try a 5.56 SS109 with the steel penitrator core.

Rudster816

I think your definition of bulletproof is a little self serving. It pierced through the polycarbonate without a problem (what a shocker!), which effectively ruins the waterblock. I'm probably bulletproof too against a .22LR, seeing as the bullet probably wouldn't go all the way through!  What's bulletproof is what appears to be a 1\2" aluminum plate. 

Why on earth would you shoot it from 2'? You obviously knew it was a bad idea at the time, so why would you still do it? I don't think shooting it from a sanfe distance really would have changed much. Somethings are just better left not done, like shooting metal waterblocks at less than arms length 

 
I called it bullet proof because if you were to hide behind it, (or interrupt the bullets flight path with this block), you would be just fine. 

I didn't think it was a bad idea or I wouldn't have done it, I just took excessive precautions.  So you think your bulletproof eh?  Care to test that?  I tested the block ;)  
 
I have actually stopped 9mm rounds with a large bag of rags, or rendered it non-lethal coming out the other end of the bag.  As soon as a bullet starts to yaw/pitch/roll it presents a larger surface area upon impact instead of the intended sharper point.  I have seen M240B machine gun rounds (7.62) get stopped (or more accurately..rendered non-lethal) by 2 layers of plywood.  Not together, but when spaced apart.  The projectile impacted the first layer of plywood, and started to yaw and slams into the second layer a 10 feet away piercing the second piece and transferring the remainder of its energy into the 2nd piece of wood, and lands a few feet behind the second sheet relatively unscathed.  If you were standing behind that piece of wood it might have felt like getting dinged with a pebble, but thats just a guess.
 
Looking at the damage done to the block, it was almost non-existent.  Where the projectile pierced the top, it hardly even marred the finish of the metal.  It only dented the rear of the area where the fins are, and thats only 1mm thick.  The projectile squeezed through the fins and pushed out the rear.  Now while its safe to say 1/4" polycarbonate (or as its more commonly known as lexan - aka bullet proof glass) wont stop a 22, a few inches of it will stop a 7.62x39 AK round. 

Not done it to a waterblock, but I have shot my fair share of computer parts over the years.  Hitting an old hard drive with a 50 cal muzzle loader was hilarious, ZERO penetration, but had to wait for it to land haha.  Got many other tales of doing stuff like that.  But yeah, Nate that's pretty funny.

$50 says the vid card and/or mobo is worthless after being shot

Brad_Hawthorne

LJennings
$50 says the vid card and/or mobo is worthless after being shot

I wouldn't say worthless. It would make an entertaining conversation piece. 

I was going more for working condition :P

I'm just waiting for someone to actually donate a card for this experiment!

If you use a 9mm at point blank you should fire it remotely (mount weapon in a vice and fire with a string), you would have a greater chance of spall coming back at you with a larger round.  Not that I think it is a good idea in the first place...
 
While we are on the subject of destroying computer parts. My wife got to blow up ~100 hard drives with 20 lbs of C4.  That was a big boom

jayball19

If you use a 9mm at point blank you should fire it remotely (mount weapon in a vice and fire with a string), you would have a greater chance of spall coming back at you with a larger round.  Not that I think it is a good idea in the first place...

While we are on the subject of destroying computer parts. My wife got to blow up ~100 hard drives with 20 lbs of C4.  That was a big boom

BTW, I tried that for something else.  Not easy with my Glock 19.  the safety latch that goes through the center of the trigger tries to prevent it.  I can always put some heat shrink tubing on it for the test.  Electrical tape didn't work so well.