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Simple instructions on how to create some targets using ferrocerium to create a reactive effect when struck by a bullet.
@Kiteman to answer your questions:<br /> <br /> <sup>&quot;Can those rods be sawed into short lengths?</sup><sup>&quot;</sup><br /> I would say, No, as they produce sparks at temperatures at high temperatures. (as when scraped against a rough surface, like a saw blade)<br /> <br /> <sup>&quot;</sup><sup>Does an airgun pellet carry enough energy to strike up a similar flash&quot;</sup><br /> I think it would depend on the type of pellet. Using &quot;traditional&quot; BB pellets<br /> (Usually made of steel and plated either with zinc or copper), I think it would be possible. Also it would depend on the firing method, many &quot;airsoft&quot; guns are either spring powered, (Automatic ones have a electrically driven spring system) or are gas powered (usually CO<sub>2</sub>)...<br /> CO<sub>2</sub> generally yield a higher FPS (foot-pound-second).<br /> <br /> Your best bet would to just test out some of the options, though I would also look into the various methods used in &quot;potato&quot; cannons, some of them yield very high FPS.<br /> <br /> Resources: (from Wikipedia)<br /> <a href="http://en.wikipedia.org/wiki/Ferrocerium" rel="nofollow">Ferrocerium</a><br /> <a href="http://en.wikipedia.org/wiki/Airsoft_gun" rel="nofollow">Airsoft guns</a><br /> <a href="http://en.wikipedia.org/wiki/Potato_gun" rel="nofollow">Potato &quot;gun&quot;</a> (they're actually cannons)<br /> <br /> Good Luck, and Happy Testing!<br /> (and welcome to the Aperture Laboratory Testing Facility)
<p>Feet PER second not pound, but you are right about everthing else.</p>
Two questions: <br /> <br />Can those rods be sawed into short lengths? <br /> <br />Does an airgun pellet carry enough energy to strike up a similar flash?
Yes its quite easy to cut with a hacksaw, but as said you will get a load of hot sparks. It snaps easy as its brittle. <br /> <br />I don't know about air rifle, I think you will get sparks but not in a spectacular fashion. Steel BB's would likely ricochet quite hard. The idea is to shatter and powder the rods in the air then let pyrophoric oxidation ignite the powder.

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