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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ruger Precision rechamber?
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<blockquote data-quote="Deleted member 46119" data-source="post: 1140556"><p>I have a RPR .308 20". Only shot a little. Got it from a member.</p><p></p><p>One very very important thing to look at: Why is there no magnum American or Precision?</p><p></p><p>The Ruger American/Precision has a 1" barrel shank, with a ~.94 minor diameter.</p><p></p><p>With a SAMMI chamber major diameter of .5563 there will be thin metal for a magnum around the chamber to contain the ~65kpsi.</p><p></p><p>.94 - .5563 = 0.3837</p><p>0.3837 / 2 = 0.19185</p><p></p><p>Compare that to a "standard" barrel shank with a 1 1/16 barrel shank with a .98 minor diameter.</p><p></p><p>.98 - .5563 = .4237</p><p>.4237 / 2 = .21185</p><p></p><p>.21185 - .19185 = .020 more metal around the chamber. In reality this is probably more like .030 ....</p><p></p><p>Yes there is a possibility I have my dimensions wrong. Ive not made these threads and I'm not don't with my coffee. I went off a thread chart. If you know more/better don't bitch, fix it.</p><p></p><p>Doesn't sound like much but Ruger chose not to make a magnum (yet).</p></blockquote><p></p>
[QUOTE="Deleted member 46119, post: 1140556"] I have a RPR .308 20". Only shot a little. Got it from a member. One very very important thing to look at: Why is there no magnum American or Precision? The Ruger American/Precision has a 1" barrel shank, with a ~.94 minor diameter. With a SAMMI chamber major diameter of .5563 there will be thin metal for a magnum around the chamber to contain the ~65kpsi. .94 - .5563 = 0.3837 0.3837 / 2 = 0.19185 Compare that to a "standard" barrel shank with a 1 1/16 barrel shank with a .98 minor diameter. .98 - .5563 = .4237 .4237 / 2 = .21185 .21185 - .19185 = .020 more metal around the chamber. In reality this is probably more like .030 .... Yes there is a possibility I have my dimensions wrong. Ive not made these threads and I'm not don't with my coffee. I went off a thread chart. If you know more/better don't bitch, fix it. Doesn't sound like much but Ruger chose not to make a magnum (yet). [/QUOTE]
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Ruger Precision rechamber?
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