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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Lest we forget, the "Short-Fat" technical idea.
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<blockquote data-quote="J E Custom" data-source="post: 1571125" data-attributes="member: 2736"><p>As mentioned, the frontal ignition system has been around for a long time in larger cartridges like the 40 mm and up mainly because of the powder column length and powders of the time.</p><p></p><p>This is one of those theories that should work in hunting cartridges and more than one person has tried it including me. the results were mixed</p><p>and the real benefit was never proven in my testing. (Less barrel erosion from un burnt powder.</p><p></p><p>There were many problems building and using the flash tubes and any improvements in velocity and accuracy did not show up in fact velocity took a hit.</p><p></p><p>I made my tubes by threading the tube and the primer pocket (There are other ways but this seemed like the best way at the time). In order to prevent powder from entering the front of the tube and filling up (Defeating the process) I pinch the end off and used a slotted tool to unscrew the tub from the inside through the neck. I even tried to use Dacron fibers to stuff the end of the tube (It will burn up with firing) but the case capacity was to unpredictable and SDs suffered.</p><p></p><p>The back of the tube had an internal shoulder to seat the tube on the case base/web. and the inside of the tub that threaded in the primer pocket was bored to take a primer, This way i could remove the tube for cleaning the tube and the case. after cleaning and reassembling I could prime the conventional way . Decapping was another problem and I found that after the tube was removed drilling was about the only way except with a long punch.</p><p></p><p>It was a very labor intensive process and proved not to be any better</p><p>Although it was interesting to try. I wish someone else would try it or if they did post their results.</p><p></p><p>Just one of my many failures.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1571125, member: 2736"] As mentioned, the frontal ignition system has been around for a long time in larger cartridges like the 40 mm and up mainly because of the powder column length and powders of the time. This is one of those theories that should work in hunting cartridges and more than one person has tried it including me. the results were mixed and the real benefit was never proven in my testing. (Less barrel erosion from un burnt powder. There were many problems building and using the flash tubes and any improvements in velocity and accuracy did not show up in fact velocity took a hit. I made my tubes by threading the tube and the primer pocket (There are other ways but this seemed like the best way at the time). In order to prevent powder from entering the front of the tube and filling up (Defeating the process) I pinch the end off and used a slotted tool to unscrew the tub from the inside through the neck. I even tried to use Dacron fibers to stuff the end of the tube (It will burn up with firing) but the case capacity was to unpredictable and SDs suffered. The back of the tube had an internal shoulder to seat the tube on the case base/web. and the inside of the tub that threaded in the primer pocket was bored to take a primer, This way i could remove the tube for cleaning the tube and the case. after cleaning and reassembling I could prime the conventional way . Decapping was another problem and I found that after the tube was removed drilling was about the only way except with a long punch. It was a very labor intensive process and proved not to be any better Although it was interesting to try. I wish someone else would try it or if they did post their results. Just one of my many failures. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Lest we forget, the "Short-Fat" technical idea.
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