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Rifles, Reloading, Optics, Equipment
Gunsmithing
throat/neck tolerance question
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<blockquote data-quote="eshorebwhntr" data-source="post: 793991" data-attributes="member: 17112"><p>I've got a 7stw that was custom built by gtr. He requests a dummy round when building the gun. I was a novice to long range shooting and reloading at the time and loaded my dummy round with Remington brass. This yielded a case with a .313 neck and that was what my throat was cut to.</p><p></p><p>Since that time stw brass has been hard to find so I went about fire forming some from norma 300 h&h brass. I've used a .310 neck bushing when I resized before but noticed today when I was reloading the fire formed brass that I had almost no neck tension because the Norma brass is thinner walled than the Remington. </p><p></p><p>Based on what I've measured the new wall thickness is .010, x2 is .020, +.284 is .304. </p><p></p><p>So my question is will having a separation of .009-.010 between the neck/throat hurt or effect anything from what I've been use to with the very tight fit? </p><p></p><p>Thanks in advance for any advice.</p></blockquote><p></p>
[QUOTE="eshorebwhntr, post: 793991, member: 17112"] I've got a 7stw that was custom built by gtr. He requests a dummy round when building the gun. I was a novice to long range shooting and reloading at the time and loaded my dummy round with Remington brass. This yielded a case with a .313 neck and that was what my throat was cut to. Since that time stw brass has been hard to find so I went about fire forming some from norma 300 h&h brass. I've used a .310 neck bushing when I resized before but noticed today when I was reloading the fire formed brass that I had almost no neck tension because the Norma brass is thinner walled than the Remington. Based on what I've measured the new wall thickness is .010, x2 is .020, +.284 is .304. So my question is will having a separation of .009-.010 between the neck/throat hurt or effect anything from what I've been use to with the very tight fit? Thanks in advance for any advice. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
throat/neck tolerance question
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