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Idea for bullet capture (Read 13309 times)

Schuetzenmiester Frequent Elocutionist Offline Posts: 6707 Location: Cool Wet Side of WA Joined: Apr 27^th, 2008	Re: Idea for bullet capture Reply #15 - Feb 20^th, 2019 at 2:57pm	Print Post
	oneatatime wrote on Feb 20^th, 2019 at 2:46pm: The minimum duration of some standard camera electronic flash units at minimum power is 1/20,000 of a second so a shot taken of a bullet at 1300 fps might have the bullet traveling only about .0008 inches. Just enough to distort the nose slump measurements

	"some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence
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ratseye Full Member Offline Posts: 202 Location: Eastern, PA Joined: Feb 28^th, 2017	Re: Idea for bullet capture Reply #16 - Feb 20^th, 2019 at 3:29pm	Print Post
	If I remember right Mann had some interesting photos in "Bullets Flight" that showed bases riveted by powder gas from very short barrels. They also shot into snow on a frozen lake and used oiled sawdust to catch bullets. I use packed wet snow to test expansion on hi-vel stuff. Thanks, ratseye


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oughtsix Global Moderator ASSRA Board Member Offline Posts: 1361 Location: Columbus Joined: May 31^st, 2009	Re: Idea for bullet capture Reply #17 - Feb 20^th, 2019 at 4:02pm	Print Post
	This was a sort of a tongue in cheek posting, but it was a serious idea and I was also sure someone here had tried it. Thanks GT and JoeB !

	Life Member ASSRA, OGCA & TSGC I'm all in favor of keeping dangerous weapons out the hands of fools. Let's start with typewriters........ Frank Lloyd Wright
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oneatatime Frequent Elocutionist Offline Posts: 4465 Location: Rocky Mountains Joined: Oct 30^th, 2011	Re: Idea for bullet capture Reply #18 - Feb 20^th, 2019 at 5:52pm	Print Post
	SM, in an 18 twist barrel that .0008 inches of travel amounts to .016 degrees of rotation. If you caught the bullet's slump perpendicular to the view it might well be obvious. Or, as I and others have said you could just look at the targets at distance and measure the effects;-)


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GT Frequent Elocutionist Online Posts: 2368 Location: Northeast Wyoming Joined: Jun 28^th, 2015	Re: Idea for bullet capture Reply #19 - Feb 20^th, 2019 at 7:51pm	Print Post
	oneatatime wrote on Feb 20^th, 2019 at 5:52pm: SM, in an 18 twist barrel that .0008 inches of travel amounts to .016 degrees of rotation. If you caught the bullet's slump perpendicular to the view it might well be obvious. Or, as I and others have said you could just look at the targets at distance and measure the effects;-) Yes you can, and it's a lot less work. Also found out that if you have a clean, heavily painted, steel target hung square to the world, the point of impact of the bullet tip in reference to the splatter, correlates to how the bullet prints on paper too. (found out we had to move the paper a minimum of 2 times the twist rate away from the steel)

	"To invent, you need a good imagination and a pile of junk" T. A. Edison "The trouble ain't that there is too many fools, but that the lightning ain't distributed right" M.T.
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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Idea for bullet capture Reply #20 - Feb 20^th, 2019 at 7:53pm	Print Post
	I think it would be extremely difficult for a slow speed camera to capture any amount of nose slump or that of an unbalanced bullet. It takes time for the bullet to fully stabilize / go to sleep for one. It would more than likely have to capture the very point of the bullet just prior to going into the tarrget and coming straight at the camera lens. When you watch the below slow speed bullet one can clearly see it has not yet stabilized when leaving the muzzle. (You need to *Login* or *Register* to view media files and links)

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Idea for bullet capture Reply #21 - Feb 20^th, 2019 at 8:02pm	Print Post
	The problem with looking at the target is the bullet is never going straight through it due to it always coming down at an arc. and also the current conditions are also working on it. Think of it as a spinning top and what little it actually takes to disturb it's balance and to it make yaw. Mann actually shows this taking place in his testing.

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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Schuetzendave Frequent Elocutionist Offline Retired Ex-Shooter Posts: 4232 Location: St. Albert, Alberta Joined: Jan 28^th, 2005	Re: Idea for bullet capture Reply #22 - Feb 20^th, 2019 at 11:32pm	Print Post
	The Police Forensic Staff fire bullets into a tank of water to verify if bullets obtained from crime secenes came from the same firearm.


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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 18036 Location: Oregon Joined: Feb 2^nd, 2009	Re: Idea for bullet capture Reply #23 - Feb 21^st, 2019 at 10:18am	Print Post
	Schuetzendave wrote on Feb 20^th, 2019 at 11:32pm: The Police Forensic Staff fire bullets into a tank of water to verify if bullets obtained from crime secenes came from the same firearm. That works great for comparative rifling tests, but they're not worried about comparing nose slump.

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Cat_Whisperer Frequent Elocutionist Offline No 1, 9.3x74R Posts: 3987 Location: Mountains of Virginia Joined: Apr 17^th, 2004	Re: Idea for bullet capture Reply #24 - Feb 21^st, 2019 at 4:22pm	Print Post
	CoalCreek Davis wrote on Feb 20^th, 2019 at 9:12am: If you live in an area with snow, you can shoot bullets into a large drift. Then pick them up off the ground after or as the snow melts. I have done this many times and the bullets are perfect. I have done this on a frozen river - shooting parallel to the ice the bullet goes through a little bit of snow many times until you find it sitting there on top of the snow. Great for pistol velocities, a bit of a challenge with the 22-250. It took 3 weeks of -10dF to freeze the river.

	Cat Whisperer (trk) Chief of Smoke Pulaski Coehorn Works and Skunk Works Drafted May 1970, Retired Maj. U.S.Army assra #9885
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Schuetzenmiester Frequent Elocutionist Offline Posts: 6707 Location: Cool Wet Side of WA Joined: Apr 27^th, 2008	Re: Idea for bullet capture Reply #25 - Feb 21^st, 2019 at 10:21pm	Print Post
	Cat_Whisperer wrote on Feb 21^st, 2019 at 4:22pm: CoalCreek Davis wrote on Feb 20^th, 2019 at 9:12am: If you live in an area with snow, you can shoot bullets into a large drift. Then pick them up off the ground after or as the snow melts. I have done this many times and the bullets are perfect. I have done this on a frozen river - shooting parallel to the ice the bullet goes through a little bit of snow many times until you find it sitting there on top of the snow. Great for pistol velocities, a bit of a challenge with the 22-250. It took 3 weeks of -10dF to freeze the river. How far does it take a bullet to stop? How do you find it?

	"some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence
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gunlaker Frequent Elocutionist Offline Posts: 2601 Location: lower mainland, B.C. Joined: Dec 13^th, 2010	Re: Idea for bullet capture Reply #26 - Feb 21^st, 2019 at 11:23pm	Print Post
	On the Mythbusters show they did this with a handgun bullet in a huge aircraft hangar. The bullet touched down inside the hangar, all caught on slow motion video. Or, you could try Gillette shaving cream. I'm sure some of you remember the commercials (You need to *Login* or *Register* to view media files and links) In all seriousness though, I've seen pictures of a lot of bullets shot into powder snow and they seem perfect. Chris.


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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 18036 Location: Oregon Joined: Feb 2^nd, 2009	Re: Idea for bullet capture Reply #27 - Feb 22^nd, 2019 at 11:17am	Print Post
	If a bullet fired into snow is perfect, then nose slump must not exist on that bullet.

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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Idea for bullet capture Reply #28 - Feb 22^nd, 2019 at 12:15pm	Print Post
	How would you go about precisely indicating the slump of the nose of the bullets after they have been caught.

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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Schuetzenmiester Frequent Elocutionist Offline Posts: 6707 Location: Cool Wet Side of WA Joined: Apr 27^th, 2008	Re: Idea for bullet capture Reply #29 - Feb 22^nd, 2019 at 1:39pm	Print Post
	gunlaker wrote on Feb 21^st, 2019 at 11:23pm: On the Mythbusters show they did this with a handgun bullet in a huge aircraft hangar. The bullet touched down inside the hangar, all caught on slow motion video. .............. In all seriousness though, I've seen pictures of a lot of bullets shot into powder snow and they seem perfect. Chris. What medium was Mythbusters shooting into? Seems like a bullet would travel a long ways in powder snow. How big are the catch piles?

	"some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence
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