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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Dry Firing...truth or myth?
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<blockquote data-quote="J E Custom" data-source="post: 1689798" data-attributes="member: 2736"><p>Dry firing is done quite often, Match shooters use dummy rounds to practice loading, firing and ejecting In different positions and if done right, does not damage the firing pin. I recommend using a dummy round to absorb some of the impact on the firing stop. The firing pin stop maintains the firing pin protrusion and if allowed to strike it without some dampening, over time it will extend the firing pin protrusion to the point of piercing the primer.</p><p></p><p>As to rim fire rifles, some have a stop on them and others rely on the case to stop the firing pin without doing damage to the breach from striking it. So unless you know which type of rim fire system your rifle has, I don't recommend dry firing any rim fire. The rim fire firing pins are not as robust as the center fire firing pins are and will not take the abuse.</p><p></p><p>Firing pins are designed to strike the primer with enough force to set off the primer and slow as the primer absorbs some of the energy in the process, and if it reaches the stop without some loss in velocity they will normally not last as long, or they will pierce the primer. </p><p></p><p>So in my opinion, the less you dry fire the longer the firing pin will last before it starts causing problems. I test firing pin protrusion on all builds and on the older rifles many times I have to machine down the length to set the correct protrusion because it has been dry fired many times without any means of slowing the firing pin down before it strikes the stop. </p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1689798, member: 2736"] Dry firing is done quite often, Match shooters use dummy rounds to practice loading, firing and ejecting In different positions and if done right, does not damage the firing pin. I recommend using a dummy round to absorb some of the impact on the firing stop. The firing pin stop maintains the firing pin protrusion and if allowed to strike it without some dampening, over time it will extend the firing pin protrusion to the point of piercing the primer. As to rim fire rifles, some have a stop on them and others rely on the case to stop the firing pin without doing damage to the breach from striking it. So unless you know which type of rim fire system your rifle has, I don't recommend dry firing any rim fire. The rim fire firing pins are not as robust as the center fire firing pins are and will not take the abuse. Firing pins are designed to strike the primer with enough force to set off the primer and slow as the primer absorbs some of the energy in the process, and if it reaches the stop without some loss in velocity they will normally not last as long, or they will pierce the primer. So in my opinion, the less you dry fire the longer the firing pin will last before it starts causing problems. I test firing pin protrusion on all builds and on the older rifles many times I have to machine down the length to set the correct protrusion because it has been dry fired many times without any means of slowing the firing pin down before it strikes the stop. J E CUSTOM [/QUOTE]
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Dry Firing...truth or myth?
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