Penetration :: Just in case you wanted to know

Just in case you wanted to know
At 10 yards

Target : 1/4inch Steel diamond plate
Angle of Incidence 5 degrees

.22lr HV. 36gr. solid splatter, no dent

7.62x25 85 gr. HP splatter, depression . Diameter .475 depth .125

5.45x39 70 gr. ball projectile penetration

5.45x39 53 gr. ball projectile penetration

5.56x45 55 gr. ball projectile penetration. (didn't test m855 because std ball penetrated)

12Ga. Brenneke Special Forces Short Magnum 2 3/4 525 gr. Plate compromised. Spalling at rear of plate. Plate Split and deformed. Diameter of plate deformation 3.15" Maximum depth of plate elongation from as measured from the rear of the plate 1.0 inches. I should also mention that it removed the plate (18x12x.25) from the plate stand and tossed it 5 feet to the back of the pit.

I was going to try steel slug on steel plate but chickened out. But looking at the Brenneke results I'm pretty sure it was going to go through. Monolit32 considering the mfg states it can penetrate 6mm steel at 20m.

Future tests to follow with pictures. (once I can find the card reader for the camera)

Future tests will include above plate:
with 2 layers ceramic tile in over lapping matrix
with 2 layers ceramic tile in fiberglass mat pack.
with 1 layer ceramic tile and cement board.

and anything else i can think of putting together.

 

+1 ^

 

Hence, the 5 degree target declination.
Also in narrow trough and shot window through rail road ties.

Yes i was worried about back splatter and built a wall out of some oak 3x7 that I got from our local sawyer to shoot behind.

But more distance would be better. Unfortunately, That's all i've got.

 

I'll tell you another round you might like to try is the 5.7 we took one to the range the other day and I had one of the old ceramic military vest that chopper pilot's use to sit on. Along with one of my old threat level III vests. First we shot both with with hollow points it made it through all of the kevlar on the vest except about 5 sheets and went about half way through the ceramic plate. The ball went through both then we doubled them and it went through the ceramic and lodged in the vest.

 

Richochets hurt! I know! ( no, don't ask!)
Did some test on ballistic plastics....
only 1 penetrated the 2.5 inches, the 7.62x25 round.
Brenneke slug made a mess, but never made it through.
.44 mag was impressive!

 

Did some penetration tests with 223s a few yrs back. Stood up a Pine 2X6, Pine 4X6. and an Oak full 1" board. That little poodle shooter went through all and knocked out a one inch diameter chunk of the Oak. That is 6" of Pine and the board. Really impressed me. Was using military ball. Doubt hunting rounds would have done so well.
Did some on Oak and Sweetgum using 7.62X39 ball. Punched through both 4X6s. A few were stopped by the much harder Oak 4Xs. This was about 35 yds. 51s and '06s are a completely different story. Six inchs of Oak doesn't slow them much at all.
Shot an AP '06 at a steel beam. It went through @ 1/2" web(center wall), through a 2 1/2 inch pipe, and still knocked out a softball chunk of concrete on the well house wall. Would not want to be behind a 1" plate and take a chance of it stopping one of those AP rounds.
Angling a deflector plate is your best safety. The more the better. A bud has steel plates painted decoratively beside his front door. You would never pay any attention to them if he did not tell you.

 

Dang!! Thought this thread was about sex..was I disappointed.

 

I DID not have sexual relations with that woman, Monica Lewinski.

Good enough?

 

According to the Ordnance Specification the AP M2 167.5gr will penetrate .3" of armor at 600 yards. The plain old Ball M2 152gr will penetrate 11" of oak at 600 yards.

 

Take a look at these a good test


http://youtu.be/Cz8b3gMwld4

 

Try these:

Leaving barrel: 1 Million FPS Slow Motion video of Bullet leaving barrel - YouTube

Penetrating steel: 1 million fps Slow Motion video of bullet impacts made by Werner Mehl from Kurzzeit - YouTube

At 1,000,000 frames per second..

 

I did some testing with Mags a few years back on one inch plate. 5.56 and 7.62x39 just dented it. .300 Win Mag blistered the hell out of the back side of the plate, I'm sure fragments would have not made it pleasant to be hiding behind. It left a big gouge where it impacted. Subsequent rounds in the same area would have penetrated easily. .45 and 9mm just made small impact points. Buckshot the same. Testing was at 25 yds.

 

Damn the bullet impact vid reminds me of Arc light footage....

 

Those 1,000,000 fps impact videos were awesome! Several were interesting:
-- The rifle copper casing splitting on the rifling scars
-- The bird shot flying in an eerie pattern
-- The angled shots and how the bullet (fragments) angled off

 

Next round of targets built and curing as we speak.

Ceramic tile 2 layers bonded to cement board bonded to .25 diamond plate steel with silicone adhesive

2 layers ceramic tile on top of cement board bonded with grout

3 layers of ceramic tile bonded to cement board bonded to .25 diamond plate steel with grout

ceramic tile bonded to cement board bonded to ceramic tile bonded to cement board with silicone adhesive then wrapped with fiberglass tape

Will post results and pics after cured and tested.

 

plain steel .25" diamond plate test results

.22lr & .22mag

7.62x25

5.45x39

.223

5.45x39 & .223 reverse

12ga 525gr hard alloy slug front

12ga rear

 

Going to be testing these out with .223/5.56 55 grain ball ammo

ceramic/cementboard/ceramic/cementboard silicone adhesive

Ceramic/ceramic/ceramic/cement board/ diamond plate grout

ceramic/ceramic/cement board grout

ceramic/ceramic/cementboard/diamond plate silicone adhesive

 

Be very careful with those shards of ceramic. It will send showers of pieces a long way and it is sharp.