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Rifles, Reloading, Optics, Equipment
Gunsmithing
When checking bolt-lug face surface % with a sharpie...
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<blockquote data-quote="Susquatch" data-source="post: 1643738" data-attributes="member: 31264"><p>OK, thanks for clarifying. I take your response to mean that it was my first possibility that you referred to. I believe that means the company you found the comment on was about one or more of the actions at Borden Rifles. Here is a direct quote from them: "The actions feature the patented "Borden Bumps" that result in a very close bolt body to action bore fit when the bolt is closed ( <.001″ diametral clearance)."</p><p></p><p>The problem there is that word "patented". Jim is a great guy and a bright fellow too. But he is also very aggressive about defending his patents. Most smith's and even the aftermarket have shied away from doing anything he might challenge in court. None of us like paying lawyers.</p><p></p><p>FWIW, I did ask PTG if they would consider making a bolt body with integral bumps. They told me that they looked into it but were not able to reach a satisfactory agreement to licence the patent. </p><p></p><p>Therefore, I like to use PTG Bolts that are custom sized to fit my trued actions instead. Obviously, the bumps would result in a tighter fit and the extra clearance while sliding would be beneficial too, but I don't believe that there is any difference in the accuracy of the resulting rifle for Borden bumps vs a custom fit bolt. I also think that adding bumps to an existing bolt looks ugly.</p></blockquote><p></p>
[QUOTE="Susquatch, post: 1643738, member: 31264"] OK, thanks for clarifying. I take your response to mean that it was my first possibility that you referred to. I believe that means the company you found the comment on was about one or more of the actions at Borden Rifles. Here is a direct quote from them: "The actions feature the patented “Borden Bumps” that result in a very close bolt body to action bore fit when the bolt is closed ( <.001″ diametral clearance)." The problem there is that word "patented". Jim is a great guy and a bright fellow too. But he is also very aggressive about defending his patents. Most smith's and even the aftermarket have shied away from doing anything he might challenge in court. None of us like paying lawyers. FWIW, I did ask PTG if they would consider making a bolt body with integral bumps. They told me that they looked into it but were not able to reach a satisfactory agreement to licence the patent. Therefore, I like to use PTG Bolts that are custom sized to fit my trued actions instead. Obviously, the bumps would result in a tighter fit and the extra clearance while sliding would be beneficial too, but I don't believe that there is any difference in the accuracy of the resulting rifle for Borden bumps vs a custom fit bolt. I also think that adding bumps to an existing bolt looks ugly. [/QUOTE]
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When checking bolt-lug face surface % with a sharpie...
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