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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.338 Sherman Short Mag build
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<blockquote data-quote="El Matavenados" data-source="post: 1394192" data-attributes="member: 89192"><p>I reamed the cases with a .307 reamer (I'm starting with 300 SAUM brass). This left the neck walls at .015" thick. I outside turned one down to .014", then ran it over the mandrel in the .338 SS die. This brought the neck walls thickness to .0135 (measured with calipers). I have a tube wall micrometer coming, which will allow me a little more precision. But I'm estimating that turning the necks down to .0135 before sizing to .338 should put me very close to the goal.</p></blockquote><p></p>
[QUOTE="El Matavenados, post: 1394192, member: 89192"] I reamed the cases with a .307 reamer (I'm starting with 300 SAUM brass). This left the neck walls at .015" thick. I outside turned one down to .014", then ran it over the mandrel in the .338 SS die. This brought the neck walls thickness to .0135 (measured with calipers). I have a tube wall micrometer coming, which will allow me a little more precision. But I'm estimating that turning the necks down to .0135 before sizing to .338 should put me very close to the goal. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.338 Sherman Short Mag build
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