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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Norma Mag (Standard Version)
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<blockquote data-quote="7.62 Gunner" data-source="post: 2649204" data-attributes="member: 121641"><p>That's exactly right, I did some researching and the 300 NM reamers are designed for Norma brass which is .581 above the web.</p><p>Lapua brass is .583 above the web so with approx .002 spring back clickers are definitely gonna be an issue.</p><p> Since you can't size the base down below virgin diameter without cracking the die the fix is going with a reamer that gives .005 clearance for a .583 base if using Lapua brass.</p><p>Pretty much the same reamer issue plagues the 6.5 and 300 PRC as well.</p></blockquote><p></p>
[QUOTE="7.62 Gunner, post: 2649204, member: 121641"] That's exactly right, I did some researching and the 300 NM reamers are designed for Norma brass which is .581 above the web. Lapua brass is .583 above the web so with approx .002 spring back clickers are definitely gonna be an issue. Since you can't size the base down below virgin diameter without cracking the die the fix is going with a reamer that gives .005 clearance for a .583 base if using Lapua brass. Pretty much the same reamer issue plagues the 6.5 and 300 PRC as well. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Norma Mag (Standard Version)
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