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Rifles, Reloading, Optics, Equipment
Gunsmithing
Why dial a rifle bore within .0001"
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<blockquote data-quote="IdahoCTD" data-source="post: 1141501" data-attributes="member: 13110"><p>What I do is dial in the barrel and then rough drill most of the chamber out (about .030" under size). Then I come back in with the boring bar and bore the chamber just under the shoulder dimension the full length that it's drilled. Then I enlarge the back of the chamber just enough to get the shoulder of the reamer started into the chamber and the pilot into the bore. Without a flush system you can easily ream the whole portion of the chamber that is bored in one pass. This greatly reduces the amount of time to chamber on big calibers if you don't have a muzzle flush system and it is a lot less wear and tear on your reamers. Unless there is deflection induced by pushing the reamer it has the best chance of going straight this way in my opinion.</p></blockquote><p></p>
[QUOTE="IdahoCTD, post: 1141501, member: 13110"] What I do is dial in the barrel and then rough drill most of the chamber out (about .030" under size). Then I come back in with the boring bar and bore the chamber just under the shoulder dimension the full length that it's drilled. Then I enlarge the back of the chamber just enough to get the shoulder of the reamer started into the chamber and the pilot into the bore. Without a flush system you can easily ream the whole portion of the chamber that is bored in one pass. This greatly reduces the amount of time to chamber on big calibers if you don't have a muzzle flush system and it is a lot less wear and tear on your reamers. Unless there is deflection induced by pushing the reamer it has the best chance of going straight this way in my opinion. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Why dial a rifle bore within .0001"
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