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Rifles, Reloading, Optics, Equipment
Gunsmithing
Calculating Free Bore on 6.5 WSM?
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<blockquote data-quote="Jud96" data-source="post: 1795993" data-attributes="member: 69478"><p>To get a ballpark idea of freebore I do something very simple. It doesn't accurately account for the length of the lead, but I normally just look at a SAAMI spec print to get that close. I go to Berger's bullet spec list. I find the bullet I intend to shoot, look at the bearing surface length. Then subtract the length of the neck from the bearing surface. Whatever is left over I add the lead length to and figure another 0.020-0.030" for Hornady bullets because their bearing surface is almost always a little longer. This is not scientific or perfect, but it gets you a good idea of how much Freebore you need.</p></blockquote><p></p>
[QUOTE="Jud96, post: 1795993, member: 69478"] To get a ballpark idea of freebore I do something very simple. It doesn’t accurately account for the length of the lead, but I normally just look at a SAAMI spec print to get that close. I go to Berger’s bullet spec list. I find the bullet I intend to shoot, look at the bearing surface length. Then subtract the length of the neck from the bearing surface. Whatever is left over I add the lead length to and figure another 0.020-0.030” for Hornady bullets because their bearing surface is almost always a little longer. This is not scientific or perfect, but it gets you a good idea of how much Freebore you need. [/QUOTE]
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Calculating Free Bore on 6.5 WSM?
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