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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
More Bullet Performance Tests - The Media
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<blockquote data-quote="royinidaho" data-source="post: 226050" data-attributes="member: 2011"><p>The Media I selected is working very well.</p><p></p><p>Pros: </p><p>*Inexpensive</p><p>*Rapidly reusable.</p><p>*Very light until moistened.</p><p>*Does not absorb water but gets wet, if that makes sense.</p><p>*Can be moistened to any degree desired. (I used a garden moisture meter to maintain consistency)</p><p>*24" will stop a 300 SMK impacting at 2175 FPS.</p><p>*Environmentally beneficial</p><p>*Is a great oil/chemical spill absorbent.</p><p>*Will last for years depending upon how much is spilled during use.</p><p>*Rinses off hands very easily. (Keep a jug of water handys)</p><p>* 1.5 cubic feet is enough for most LR/VLD, velocity for range testing.</p><p></p><p>Cons:</p><p>* Dirty until moistened</p><p></p><p></p><p>Containment:</p><p></p><p>This is a real problem with rapidly expanding large bullets like the 300 SMK. I screwed a box together that I thought was very solid, which turned out to be the problem.</p><p></p><p>A 150 Berger mentioned in the Introduction had no affect on the box at all.</p><p></p><p>A 280 HAT at some unknown velocity opened the box severely.</p><p>I then rebuild and reinforced it extensively.</p><p>A 300 SMK hit it at 2175 FPS and completely destroyed it.</p><p></p><p>I spent the next several hours redesigning the whole idea.</p><p></p><p>The secret is "use no screws whatever". I drew my inspiration from the design of an Elk's rib cage.</p><p></p><p>The new construction worked very well. I was able to conduct 4 bullet tests in about 45 minutes.</p><p></p><p>Seeing as how bullet spin is a non-factor, per other threads, I used reduced loads to simulate downrange velocities.</p><p></p><p>Part 3 will show the effectiveness of the media.</p><p></p><p>For most applications a 3 foot length of heavy walled plastic pipe will be sufficient. For those that must have the media out towards 1K I have no idea of what to use. Thus I put the media immediately behind the chrono.</p><p></p><p>Link to Introduction: <a href="http://www.longrangehunting.com/forums/f19/more-terminal-performance-tests-introduction-33484/" target="_blank">http://www.longrangehunting.com/forums/f19/more-terminal-performance-tests-introduction-33484/</a></p></blockquote><p></p>
[QUOTE="royinidaho, post: 226050, member: 2011"] The Media I selected is working very well. Pros: *Inexpensive *Rapidly reusable. *Very light until moistened. *Does not absorb water but gets wet, if that makes sense. *Can be moistened to any degree desired. (I used a garden moisture meter to maintain consistency) *24" will stop a 300 SMK impacting at 2175 FPS. *Environmentally beneficial *Is a great oil/chemical spill absorbent. *Will last for years depending upon how much is spilled during use. *Rinses off hands very easily. (Keep a jug of water handys) * 1.5 cubic feet is enough for most LR/VLD, velocity for range testing. Cons: * Dirty until moistened Containment: This is a real problem with rapidly expanding large bullets like the 300 SMK. I screwed a box together that I thought was very solid, which turned out to be the problem. A 150 Berger mentioned in the Introduction had no affect on the box at all. A 280 HAT at some unknown velocity opened the box severely. I then rebuild and reinforced it extensively. A 300 SMK hit it at 2175 FPS and completely destroyed it. I spent the next several hours redesigning the whole idea. The secret is "use no screws whatever". I drew my inspiration from the design of an Elk's rib cage. The new construction worked very well. I was able to conduct 4 bullet tests in about 45 minutes. Seeing as how bullet spin is a non-factor, per other threads, I used reduced loads to simulate downrange velocities. Part 3 will show the effectiveness of the media. For most applications a 3 foot length of heavy walled plastic pipe will be sufficient. For those that must have the media out towards 1K I have no idea of what to use. Thus I put the media immediately behind the chrono. Link to Introduction: [URL]http://www.longrangehunting.com/forums/f19/more-terminal-performance-tests-introduction-33484/[/URL] [/QUOTE]
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More Bullet Performance Tests - The Media
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