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Homemade Ballistics Gel Tests
Posted: Tue Dec 25, 2007 1:57 am
by c19o
Well I found some gelatin powder in the pantry so u know what that means!
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"..
Posted: Tue Dec 25, 2007 2:20 am
by Novacastrian
Very nice.
This looks like a sperm
http://i179.photobucket.com/albums/w303 ... 7_0002.jpg
Edit: GlenLivet Whiskey is so smooth!!!! Twwettle dee dweetle duummmm..
Posted: Tue Dec 25, 2007 2:28 am
by cwazy1
lol drunk much?
Posted: Tue Dec 25, 2007 2:32 am
by Novacastrian
cwazy1 wrote:lol drunk much?
M a y b e . . . .
Posted: Tue Dec 25, 2007 2:34 am
by c19o
HAHAHA.... Message is now not too short
Posted: Tue Dec 25, 2007 2:37 am
by Novacastrian
DON'T INTERRUPT ME!!
Edit:
Posted: Tue Dec 25, 2007 2:40 am
by cwazy1
lol i bet right now you look like stewie in your avatar. ho ho ho merry christmas!
Posted: Tue Dec 25, 2007 4:07 am
by tansit234
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.
Posted: Tue Dec 25, 2007 4:16 am
by carter
i am unfortunately. how close is it to proper ballistics gel. if you that is.
Posted: Tue Dec 25, 2007 7:55 am
by Bubba05
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?
Bubba
Posted: Tue Dec 25, 2007 8:48 am
by jrrdw
Turn back, it's just a bj!
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.
Posted: Tue Dec 25, 2007 10:50 am
by c19o
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.
Posted: Tue Dec 25, 2007 10:56 am
by jackssmirkingrevenge
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.
Posted: Tue Dec 25, 2007 10:58 am
by c19o
Well when I get my chrono built I'll be able to do exactly that.
Posted: Tue Dec 25, 2007 1:13 pm
by jrrdw
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: