Comments on: Air Gun Ballistics http://www.photosbykev.com/wordpress/2008/12/15/air-gun-ballistics/ Wildlife and Nature Photography by Kevin Thu, 15 Jul 2010 22:10:52 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Herb http://www.photosbykev.com/wordpress/2008/12/15/air-gun-ballistics/comment-page-1/#comment-1228 Herb Sun, 06 Sep 2009 02:56:21 +0000 http://www.photosbykev.com/wordpress/?p=338#comment-1228 I had also thought about filling a 4 inch piece of plastic pipe with water. One end has glued cap. Other end use plastic wrap and rubber band to hold water in pipe. Shoot through plastic kitchen wrap of course. You'd need several feet. Wrap probably only good for one shot. But plastic wrap and water are cheap, easy, and quick. Even grocery store gelatin gets expensive. Gelatin also requires quite a bit of prep. You could fill a 4 foot section of pipe with water in a few minutes. I should add since I didn't care about calibration, I reheated gelatin and reused it a number of times. I was testing expansion of hollow point pellets. By and large you have to shoot hollow points faster than any rifle I have. I was admonished by an expert to think like a buffalo hunter. Expansion is a secondary factor. You first have to be able to hit a vital spot! I had also thought about filling a 4 inch piece of plastic pipe with water. One end has glued cap. Other end use plastic wrap and rubber band to hold water in pipe. Shoot through plastic kitchen wrap of course. You’d need several feet. Wrap probably only good for one shot. But plastic wrap and water are cheap, easy, and quick. Even grocery store gelatin gets expensive. Gelatin also requires quite a bit of prep. You could fill a 4 foot section of pipe with water in a few minutes.

I should add since I didn’t care about calibration, I reheated gelatin and reused it a number of times.

I was testing expansion of hollow point pellets. By and large you have to shoot hollow points faster than any rifle I have. I was admonished by an expert to think like a buffalo hunter. Expansion is a secondary factor. You first have to be able to hit a vital spot!

]]> By: Herb http://www.photosbykev.com/wordpress/2008/12/15/air-gun-ballistics/comment-page-1/#comment-1227 Herb Sun, 06 Sep 2009 02:45:51 +0000 http://www.photosbykev.com/wordpress/?p=338#comment-1227 To recover the pellet you don't need "real" ballistic gelatin. Use plain gelatin from grocery store, but make it extra concentrated - about 10 times what is used for regular gelatin. You can find details on web. "Real" basaltic gelatin should also be calibrated with a BB to insure that the gelatin was prepared properly. Using water that is too hot weakens the gelatin structure. To recover the pellet you don’t need “real” ballistic gelatin. Use plain gelatin from grocery store, but make it extra concentrated – about 10 times what is used for regular gelatin. You can find details on web.

“Real” basaltic gelatin should also be calibrated with a BB to insure that the gelatin was prepared properly. Using water that is too hot weakens the gelatin structure.

]]> By: nishant http://www.photosbykev.com/wordpress/2008/12/15/air-gun-ballistics/comment-page-1/#comment-189 nishant Tue, 23 Dec 2008 15:59:16 +0000 http://www.photosbykev.com/wordpress/?p=338#comment-189 Very nice and informative pics......congrats!! Very nice and informative pics……congrats!!

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