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Rifles, Reloading, Optics, Equipment
Reloading
fire forming method for new cases
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<blockquote data-quote="nheninge" data-source="post: 271197" data-attributes="member: 13085"><p>I have been contemplating a new way to fire form brass. Call me crazy, but I don't like the idea of cream of wheat and toilet paper in a custom barrel!</p><p></p><p>I thought about designing a nicely machined firing chamber in a short barrel (same caliber) using the same reamer that ground my chamber. Then using light loads and a small hammer driven firing pin to launch an appropriately sized rubber/plastic projectile (SAFELY!) Ta Daa! Case fire formed!</p><p></p><p>However, before blowing myself up, breaking the law, and dialing 91 and putting my finger on the one, I decided to research. I came up with this. Almost exactly what I was thinking of (see pics).</p><p></p><p><img src="http://reloaders.gunloads.com/attachment.php?attachmentid=91&stc=1&d=1236549266" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="http://reloaders.gunloads.com/attachment.php?attachmentid=92&stc=1&d=1236549297" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Does anyone have any experience with this type of fire forming method?</p><p></p><p>I understand ballistics, and realize that even one trip to the hospital/jail is way more expensive than a new barrel. </p><p></p><p>Here are my thoughts:</p><p>- if a device like this can be used safely/legally, it would help extend barrel life</p><p>- since the chambers are theoretically exactly the same it should fire form the cases nicely</p><p>- I know light loads can be a problem d/t inappropriate interaction of the case wall and the chamber wall (more backward thrust and flattened primers, case head separation etc.</p><p>- some type of safe projectile has to be used since this pressure is what expands the case appropriately.</p><p></p><p>Safety is #1</p><p>Barrel life is at a premium, now more than ever</p><p>I don't like "glued-together-contraptions", but a well though out tool is what I want</p><p></p><p>This is clearly not a new idea, so any help appreciated!</p><p>Don't crucify me, it is just an idea!</p></blockquote><p></p>
[QUOTE="nheninge, post: 271197, member: 13085"] I have been contemplating a new way to fire form brass. Call me crazy, but I don't like the idea of cream of wheat and toilet paper in a custom barrel! I thought about designing a nicely machined firing chamber in a short barrel (same caliber) using the same reamer that ground my chamber. Then using light loads and a small hammer driven firing pin to launch an appropriately sized rubber/plastic projectile (SAFELY!) Ta Daa! Case fire formed! However, before blowing myself up, breaking the law, and dialing 91 and putting my finger on the one, I decided to research. I came up with this. Almost exactly what I was thinking of (see pics). [IMG]http://reloaders.gunloads.com/attachment.php?attachmentid=91&stc=1&d=1236549266[/IMG] [IMG]http://reloaders.gunloads.com/attachment.php?attachmentid=92&stc=1&d=1236549297[/IMG] Does anyone have any experience with this type of fire forming method? I understand ballistics, and realize that even one trip to the hospital/jail is way more expensive than a new barrel. Here are my thoughts: - if a device like this can be used safely/legally, it would help extend barrel life - since the chambers are theoretically exactly the same it should fire form the cases nicely - I know light loads can be a problem d/t inappropriate interaction of the case wall and the chamber wall (more backward thrust and flattened primers, case head separation etc. - some type of safe projectile has to be used since this pressure is what expands the case appropriately. Safety is #1 Barrel life is at a premium, now more than ever I don't like "glued-together-contraptions", but a well though out tool is what I want This is clearly not a new idea, so any help appreciated! Don't crucify me, it is just an idea! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
fire forming method for new cases
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