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Rifles, Reloading, Optics, Equipment
Gunsmithing
Big jump
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<blockquote data-quote="J E Custom" data-source="post: 1451595" data-attributes="member: 2736"><p>SAMMI freebore for the 300 WSM Is set at .189. If you use secant ojive bullets it will be much more than that. Some rifles have over .500 thousandths free bore.</p><p></p><p>Checking some of the secant ojive bullets has extended the free bore an average of .125. .125 +.189 gives you .314 freebore. So it looks like your smith used a SAMMI reamer.</p><p></p><p>As stated, You don't have to touch the lands to get good accuracy. In fact I find that the Berger's like .090 to .110 jump and are very accurate.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1451595, member: 2736"] SAMMI freebore for the 300 WSM Is set at .189. If you use secant ojive bullets it will be much more than that. Some rifles have over .500 thousandths free bore. Checking some of the secant ojive bullets has extended the free bore an average of .125. .125 +.189 gives you .314 freebore. So it looks like your smith used a SAMMI reamer. As stated, You don't have to touch the lands to get good accuracy. In fact I find that the Berger's like .090 to .110 jump and are very accurate. J E CUSTOM [/QUOTE]
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