300 BLK vs Car Door

AR/M4 Beyond 5.56/.223
1

http://www.youtube.com/watch?v=9mXa5AiT0r4

2

Thanks for sharing…I’ll be the first to ask the usual questions. :smiley:

Do you know barrel length of weapon used and distance from muzzle to barrier?

Thanks.

–> and oh yea…when’s this stuff hitting the commercial market?

3

No, but the distance and barrel length do not make a significant difference. See this to show that barrel length does not matter:

See this to show that 0 vs 100 yards does not matter:

4

…where is the car door?

5

Excellent…thanks!

I ask because allot of the test info you’ve posted has been with the 9" and I wanted to ensure these results would be repeatable. Never know when those hogs will be hiding behind car doors…

6

Don’t car doors usually have lining for sounds, and instillation for temperature control. Window mechanisms and such also. Big fan of the 300 BLK but not of this “Car Door” ?

7

Looks a lot like a FBI ammo steel test protocol designed to simulate “car doors” to me (two pieces of 20 gauge, hot rolled steel with a galvanized finish are set three inches apart), but what would I know…

8

I would love to see a test done with actual car doors, one with window down and one window up. I know the deflection might be crazy, but it would be more realistic. No matter what, know your target and backstop…and what cover the target might be using. If its life or death, light 'em up regardless.

9

An actual car door would vary depending on the door, and the location of impact. If the both the bullet and medium change from shot to shot - that does not provide usable data. The FBI standard “car door” is a repeatable test.

Same reason why shooting gel is better than shooting pigs for comparing different bullets - the medium is the same on each shot and only the bullet changes.

10

Very true. More scientific. The round doing what it did is most impressive. I have been very taken by the 300BLK and am planning on purchasing an upper. I would just like to see what would/could happen…even though I have a good idea. That’s why I said “If its life or death, light 'em up regardless.”

11

Its almost like you’ve done this stuff once or twice… :smiley:

12

It will be a few months, but I do have “occasions” to do medium shoots and cars are always used. Not full on FBI protocols, but real cars with real glass, doors with the electronics, upholstery, door linings, knobs, etc. I won’t be able to buy the varying types of ammunition but will have 1-3 of my own.
Normally, front glass, rear glass, into the engine compartment, front/rear doors and trunk/cargo area. Glass is outside-in and inside out.

13

Yeah, really, who are you?:eek:

14

Very true, so many variables with different cars, area’s of strike, etc.

15

Bullets do weird shit passing through vehicles. You’d be lucky to even find the bullet, let alone trying to shoot squarely into a block of gelatin.

16

This test was shot using the FBI intermediate barrier protocol. It is fired from a distance of ten feet from
the muzzle to the first barrier. It simulates the weakest part of a car door. It was fired using a 9” barrel.
Having fired this test many times with many different projectiles including other Barnes bullets which work great for barriers, these results are impressive. To have minimal deflection and bullet expansion through steel is not common.

17

So .300 Blackout performs on car doors just like .17HMR; big deal.

18

Is that true? I have never seen 17 HMR (not .17 HMR) tests, but do they:

  1. Expand to the same diameter in 10% bare gel after having first gone through two 20 gauge pieces of hot-rolled galvanized steel with three inches of separation as when shot into bare 10% gel?

  2. Expand to 0.60 in size and weigh about 108 grains when recovered?

19

Holy Smokes! That is impressive performance. I’m sold!

20

Any tests from a 16" bbl?