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Rifles, Reloading, Optics, Equipment
Gunsmithing
Why is there no coatings used in rifle throats to slow erosion?
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<blockquote data-quote="theflyonthewall" data-source="post: 576972" data-attributes="member: 35305"><p>Great links, roy!! I have a much better grasp on it now.</p><p></p><p>Some random thoughts:</p><p></p><p>To my way of thinking, the reason that frontal ignition hasn't seen the success that it has the potential to, is the SOURCE of the ignition-----the primer. I don't have proof, but I can't possibly believe that with a length of travel of the flame front in a case the size of yours (case length) that a single point, primer-type ignition can reliably ignite a powder charge from one end to the other before the bullet began traveling forward and changing the pressures in the case.</p><p></p><p>If my thinking is correct, the "yet-unburned" powder that remains in the case is likely going to be pushed from the case to the barrel no matter which end is used to begin the burn. Maybe I'm wrong here, but I'm basing this on the belief that the pressure rise will travel a good deal faster than the flame front will. Therefore the pressure sends unburned powder down the tube despite a great deal of effort to keep it from doing just that.</p><p></p><p>So what I'm thinking has to happen is a new ignition system needs to be found, that we can retrofit into your cases. </p><p></p><p>And that's about where my brain leaves off tonight....lol. I'll be tossing some concepts around and let you know if I find something that seems worth looking into.</p></blockquote><p></p>
[QUOTE="theflyonthewall, post: 576972, member: 35305"] Great links, roy!! I have a much better grasp on it now. Some random thoughts: To my way of thinking, the reason that frontal ignition hasn't seen the success that it has the potential to, is the SOURCE of the ignition-----the primer. I don't have proof, but I can't possibly believe that with a length of travel of the flame front in a case the size of yours (case length) that a single point, primer-type ignition can reliably ignite a powder charge from one end to the other before the bullet began traveling forward and changing the pressures in the case. If my thinking is correct, the "yet-unburned" powder that remains in the case is likely going to be pushed from the case to the barrel no matter which end is used to begin the burn. Maybe I'm wrong here, but I'm basing this on the belief that the pressure rise will travel a good deal faster than the flame front will. Therefore the pressure sends unburned powder down the tube despite a great deal of effort to keep it from doing just that. So what I'm thinking has to happen is a new ignition system needs to be found, that we can retrofit into your cases. And that's about where my brain leaves off tonight....lol. I'll be tossing some concepts around and let you know if I find something that seems worth looking into. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Why is there no coatings used in rifle throats to slow erosion?
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