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September 8, 2014, 12:57 AM | #151 | |
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Welcome back. Very fine stuff indeed.
Quote:
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September 8, 2014, 08:08 AM | #152 | |
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Quote:
This is a bit easier than ones with bullet flying towards you: Can you get this work? |
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September 8, 2014, 06:53 PM | #153 |
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Yes, i can get that one to work, thanks, interestingly, i get to the same half focused point, and it sits there for another few seconds before i can get the sharp definition.
That didn't happen on the others. I wonder if it's anything to do with resizing (initial image work, not scaling in the browser) as i know the old magic eye pics had that problem on computers. *Edit - hmm, just went and looked at the pics on page 6 of this thread and was able to view them ok, i'll check the ones back on your site later. I *think* the focus level is linked to how cross-eyed you are, if that's off, even if the 'middle' picture is clearly bordered, i can't seem to *fully* focus on the center image. |
September 14, 2014, 08:18 AM | #154 |
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Yesterday I heard that one of my shooting buddies had an incident at range. Nothing too serious but an eye injury. Da*n, eyes again? Hopefully it's not a permanent one.
Guess if he had his eye protection on? No, he did not, so in addition to thousands already existing warnings I made a simple picture with clear message: Eye protection link I can say I'm on mission: This picture is something I ask you to post and send forward and even print to you local range wall. Don't gamble with your eyes - you can only lose in that game! |
September 15, 2014, 11:56 AM | #155 |
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Outstanding!
tipoc |
September 19, 2014, 10:21 AM | #156 |
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Pictures for Glock enthusiasts:
A brief moment after hammer hit: And even smaller moment after previous image: Enjoy Go check the rest: Kuulapaa site |
September 19, 2014, 07:43 PM | #157 |
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Oooh, is that the new equipment, those shots are really clear and crisp, i like.
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September 20, 2014, 09:34 AM | #158 |
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Yep, they were taken with new gear. It was pain in the @ss but it was worth it
Anyway, there has been discussion about bullet wobble in couple of forums and here is one picture, which may show an example. I don't say that bullets wobble, but they seem to be slightly tilted. What do you think? |
September 20, 2014, 10:11 AM | #159 |
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I would think it wobbles like a badly thrown football. Maybe the cast bullet had an air pocket and the wobble represents the bullet spinning around its off-center center of mass.
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September 20, 2014, 12:32 PM | #160 | |
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That's definitely not the first pic I've seen that 'bullet crookedness' It's sort of interesting as most pistols have fairly fast twist rates, and short projectiles, so they should be more than stabilized. Maybe that's the problem, they're being spun a bit too fast, and it's causing the bullet to 'tilt' I've read about that happening with 'overspun' rifle bullets having a slight 'tilt' which will reduce the ballistic coefficient of said projectile.
Just to give an example. A 9mm Kahr has a 1:10'' twist for 9x19 If we fire a 124 grain Nosler hollowpoint with a length of .56'' @ 1100FPS, projectile has a stability factor of 13.9 according to Berger's twist calculator. A stability factor of 1.5 is considered stable, 2 is usually considered ideal stability. This particular example has an SG of 13.9 which is very high. A lighter/shorter bullet would have an even higher factor, still. Quote:
Last edited by JD0x0; September 20, 2014 at 12:43 PM. |
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September 20, 2014, 12:37 PM | #161 |
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I agree, i think they start their flight like a dart or an American football/Rugby ball.
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September 20, 2014, 03:52 PM | #162 |
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These are awesome!
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September 21, 2014, 01:36 PM | #163 |
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Awesome pics, thanks for posting!
I especially like the stereoscopic images.
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September 21, 2014, 03:47 PM | #164 |
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What app for the iphone are you using to take these pics?
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September 21, 2014, 05:09 PM | #165 |
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could you get multiple bullets in a single pic from a full-auto? I know 900rpm isn't that fast, so they might be too far apart to do it
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September 21, 2014, 07:56 PM | #166 | |
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Quote:
A .45acp submachine gun at 1200 rpm will have the bullets 45 ft apart if the bullets travel 900 fps.
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October 9, 2014, 12:59 PM | #167 |
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October 10, 2014, 09:02 AM | #168 |
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Does the slide start moving before or after bullet has exited the barrel?
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October 10, 2014, 09:59 PM | #169 |
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I didn't realize that so much gas leaked past the bullet, or is the bullet pushing the smoke from a previous shot out of the barrel ahead of it?
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October 10, 2014, 10:06 PM | #170 | |
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Quote:
It confirms what physics tells us must be true.
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October 11, 2014, 11:18 PM | #171 |
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Awesome work man.
I am thoroughly impressed.
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October 12, 2014, 02:34 PM | #172 | |
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Quote:
tipoc |
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October 12, 2014, 07:53 PM | #173 |
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poster fingunner - n your post 134, what glasses and ear muff is the guy wearing in the photo
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November 6, 2014, 02:38 PM | #174 |
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Holy crap! -- awesome !
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Sumo magis ammo |
November 30, 2014, 10:51 PM | #175 |
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Very cool pictures.
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