Bullet proof plastic?

[Remmy4477]

Not sure If I have this in the correct forum? Forgive me.

I have a plastics supplier on my route.
Last week they had an interesting display on there front desk.

A peice of plastic roughly 8 inches by about 8 inches and almost 2 inches thick. It is a new product there touting as being bullet proof. This peice had 3 bullet holes in it. It had been shot with a 44 mag using hollow points. The bullets entered the plastic and lodged about an inch in, fully mushroomed.

I asked them at what range had it had been shot, what type of firearm was used and bullet weight used. They could not answer these questions, one of there customers tried it and only told them it was a 44mag.
I told them that was not much of a test. Using hollow points, they will start expanding at penetration and are designed to technically not go completely through. I pointed out the bullets did go in half way. What would happen if a full jacketed bullet hit it? A larger caliber or a smaller caliber at hi-speed? They could not answer that.

I believe a square full on hit will punch through it if not using hollow points, at an angle might be another story, would probably work as designed.

I asked them if I could give it a go, wound up with a peice 12 by 12 inches.
Will be straight on hits, don't need stray boolits bouncing around the range.
Thinking 10 yards max. Probably 5 yards with the 9mm.
30-06 with 150grn AP rounds.
45-70 350grn jacketed soft points and hard lead boolits, both arount 1600fps.
44 mag with a rifle, 250 grn lead fp. 1100 fps, not really hi power but not a hollow point.
9mm 115grn, standard fmj ammo

Should be interesting to see what happens. If I can get to this test today will post the results with pictures as to how it goes.

[jmorris]

There are bullet shields made out of WHMW PE (“plastic”)

https://store.aashield.com/products/...ard-body-armor

Bullet proof “glass” is often a laminant of polyurethane and polycarbonate.

[Deadeye Bly]

Lexan is fairly bullet proof even in thickness less than 1/2". It might not stop a full metal jacket rifle bullet at that thickness but it will certainly slow it down seriously.

[JSnover]

We salvaged an F-15 canopy years ago. It was laminated, I believe with layers of 1/4" Lexan and another much softer material, inch and a half to two inches thick if I recall. At 15 feet it stood up to 30-06 and .44 magnums. The inside layer (offside from the shot) fractured and popped off but none of the bullets penetrated, all were stopped 1/2-2/3 of the way through.

[deltaenterprizes]

Most “bulletproof “ glass is designed for pistol calibers!
There is no such thing as bulletproof because you can always get a bigger bullet, like 20mm!
Test 223 62gr FMJ, they have plenty of penetrating power.

[Mr_Sheesh]

Usually I've seen it called "Bullet Resistant" to more truthfully denote it. Which makes sense to me. Doubt it'd be proof to an M1 Abrams' main gun discarding sabot round :P

[Speedo66]

Usually I've seen it called "Bullet Resistant" to more truthfully denote it. Which makes sense to me. Doubt it'd be proof to an M1 Abrams' main gun discarding sabot round :P

Yeah, but they're tough to carry concealed. lol

[Jniedbalski]

220 swift will amaze you what it will go through. 4000 FPS and over is the magic number. It really dosent matter on bullet weight but the speed. 4000 and over and a tiny plastic tip hunting bullet can go through 3/4 plate steel

[Silvercreek Farmer]

Be sure to take lots of pics and or video!

[Cast_outlaw]

The 44 mag with a 240gr cast loaded balls to the wall should punch clean through I would bet a 45 colt would go though as well

[pacomdiver]

338 lapua 250 or 300g , at 750 yards, its still carrying more power in ft lbs than a 240g 44 mag at point blank range

[jeepyj]

Marked with interest.

[DCM]

Try a 357Sig FMJ FP out of a full size pistol, I bet it will penetrate over 1 inch.

[crankycalico]

I says....... standard 198 grain FMJ from 8x57 mauser fired from a genuine Yugoslavian 24/47 will disprove this companies claims....

[Tom W.]

If it's thick enough..........may be a bit ungainly though.......

[tbx-4]

Be very careful shooting any bullet proof glass or plastic especially with hand guns. Years ago a friend shot a bullet proof car windshield point blank with a his 1911 and the bullet bounced back and just missed his ear!

[nicholst55]

That .30-06 M2 Armor Piercing round will likely whiz right on through; probably no need for anything more exotic. I was surprised by the penetration of.44 Mag 250 grain SWCs on steel, the first time I tried. I shot at an old (mid-60s) car, and an old, very thick 55-gallon drum. My rather mild load of IMR-4227 penetrated clean through both the car door (in and out) and the 55-gal drum.

[samari46]

It's called ballistic grade lexan. They use it in banks and it's those heavy clear plastic sheild that they put around teller's cubicles. One of the ranges I used to shoot at a lot had a bunch of samples left for some of the shooters to try their luck in getting their bullet through the sheild. far as I can remember only I load ever made it through. The U.S. Army AP load. No matter how many different combinations they tried it defeated them all. Then they went to different thickness's 1 1/4", 11/2" failed. 2" showed some promised as not all the ap bullets made it through . by the time they got to 3" that had a winner. None passed through. Some of the test sheilds had as many as 6 layers of lexan. I'd almost guarantee it has been up graded and will stop all pistol and revolver ammo. Frank

[farmerjim]

220 swift will amaze you what it will go through. 4000 FPS and over is the magic number. It really dosent matter on bullet weight but the speed. 4000 and over and a tiny plastic tip hunting bullet can go through 3/4 plate steel

I was sighting in my new 22-250. Not on paper at 100 yds. Moved to 25 yds. put a piece of cardboard on a piece of 5/8 rebar for a target. First shot hit the rebar dead center. The hole that went clean through looked like it had been drilled with a good 1/4 in bit in a drill press. 4000 FPS is magic.

[Jniedbalski]

I seen the 22/250 and 220 swift go through mild 3/4 plate steel no problem. Like you said looked like sombody took a 1/4 in drill and made holes.