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Homemade Ballistics Gel Tests

A place to ask general spud cannon related questions.
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Homemade Ballistics Gel Tests

Unread postAuthor: c19o » Tue Dec 25, 2007 1:57 am

Well I found some gelatin powder in the pantry so u know what that means!

Image
Image
Image

Ammo was some .177 BBs at one pump from a Daisy Powerline 880..

Later I melted it all down and added 2 more packets of powder and 10 pumps wouldn't make it all the way through, 1 pump went in like 3/4"..
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Unread postAuthor: Novacastrian » Tue Dec 25, 2007 2:20 am

Very nice.

This looks like a sperm :D http://i179.photobucket.com/albums/w303 ... 7_0002.jpg

Edit: GlenLivet Whiskey is so smooth!!!! Twwettle dee dweetle duummmm..
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Unread postAuthor: cwazy1 » Tue Dec 25, 2007 2:28 am

lol drunk much?
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Unread postAuthor: Novacastrian » Tue Dec 25, 2007 2:32 am

cwazy1 wrote:lol drunk much?


M a y b e . . . .
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Unread postAuthor: c19o » Tue Dec 25, 2007 2:34 am

HAHAHA.... Message is now not too short
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Unread postAuthor: Novacastrian » Tue Dec 25, 2007 2:37 am

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Last edited by Novacastrian on Tue Dec 25, 2007 2:42 am, edited 1 time in total.
America, the greatest gangster of all time. With 200 million odd foot soldiers at it's whim and call.
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Unread postAuthor: cwazy1 » Tue Dec 25, 2007 2:40 am

lol i bet right now you look like stewie in your avatar. ho ho ho merry christmas!
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Unread postAuthor: tansit234 » Tue Dec 25, 2007 4:07 am

lol, oh jeeze, alcohol and projectile launchers. Nifty thing with the jello though, I'd like to see some math to that, >.> when everyone is sober. :roll:
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Unread postAuthor: carter » Tue Dec 25, 2007 4:16 am

i am unfortunately. how close is it to proper ballistics gel. if you that is.
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Unread postAuthor: Bubba05 » Tue Dec 25, 2007 7:55 am

I dono mate isent balistics gell saposed to have the same charatristics as human flesh?
If thats the case mate bb's just bounce off. trust me bin hit a few times!
What distance was this done at?

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Unread postAuthor: jrrdw » Tue Dec 25, 2007 8:48 am

Novacastrian wrote:Very nice.

This looks like a sperm :D http://i179.photobucket.com/albums/w303 ... 7_0002.jpg

Edit: GlenLivet Whiskey is so smooth!!!! Twwettle dee dweetle duummmm..


Turn back, it's just a bj! :shock: But really, either that jell is super tough or the bb gun is super weak. I've had 880's before and put bb's through 1/4" plywood, at 15/20 feet away.
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Unread postAuthor: c19o » Tue Dec 25, 2007 10:50 am

Yea I can punch the gel, stand on it and it stays together.. I shot from 1ft away... I can assure you the bb gun is good, it shoots through those metal for-sale signs. :D
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Unread postAuthor: jackssmirkingrevenge » Tue Dec 25, 2007 10:56 am

To ensure accurate results, immediately prior to use, the gelatin block is "calibrated" by firing into it a standard .177 caliber (4.5 mm) steel BB, from an air gun over a gun chronograph into the gelatin, and the depth of penetration measured. While the exact calibration methods vary slightly, the calibration method used by the INS National Firearms Unit is fairly typical. It requires a velocity of 600 ± 10 f/s (183 ± 3 m/s), and a BB penetration between 3.25 and 3.75 inches (8.3 to 9.5 cm). 600 f/s is two to three times faster than the velocity of a BB propelled by a typical spring-air BB gun, and so where a typical BB gun might not penetrate the elastic skin of an animal, the higher velocity calibration shot will penetrate the gelatin more than might be expected.
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Unread postAuthor: c19o » Tue Dec 25, 2007 10:58 am

Well when I get my chrono built I'll be able to do exactly that. :D
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Unread postAuthor: jrrdw » Tue Dec 25, 2007 1:13 pm

jackssmirkingrevenge wrote:
To ensure accurate results, immediately prior to use, the gelatin block is "calibrated" by firing into it a standard .177 caliber (4.5 mm) steel BB, from an air gun over a gun chronograph into the gelatin, and the depth of penetration measured. While the exact calibration methods vary slightly, the calibration method used by the INS National Firearms Unit is fairly typical. It requires a velocity of 600 ± 10 f/s (183 ± 3 m/s), and a BB penetration between 3.25 and 3.75 inches (8.3 to 9.5 cm). 600 f/s is two to three times faster than the velocity of a BB propelled by a typical spring-air BB gun, and so where a typical BB gun might not penetrate the elastic skin of an animal, the higher velocity calibration shot will penetrate the gelatin more than might be expected.


Sounds like a well thought out process, standardized to a science. Where did you find this? A website? :coffee2:
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