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Rifles, Reloading, Optics, Equipment
Reloading
7-300 Win. Brass options?
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<blockquote data-quote="el matador" data-source="post: 1465131" data-attributes="member: 12193"><p>Its a good idea to check neck clearance any time you're necking down brass. Just measure the neck OD of a fired case and compare it to a loaded round. Ideally the loaded round will be .003 to .005" smaller. If you have less than .003" of clearance it could be giving you pressure issues. </p><p></p><p>Based on the fact that you're not seeing any other pressure signs I would guess the Norma brass is expanding too much at the web area. Thai means the brass is too small or the chamber is too big. Maybe compare some unfired Winchester and Norma to the fired brass and let us know what you find.</p></blockquote><p></p>
[QUOTE="el matador, post: 1465131, member: 12193"] Its a good idea to check neck clearance any time you're necking down brass. Just measure the neck OD of a fired case and compare it to a loaded round. Ideally the loaded round will be .003 to .005" smaller. If you have less than .003" of clearance it could be giving you pressure issues. Based on the fact that you're not seeing any other pressure signs I would guess the Norma brass is expanding too much at the web area. Thai means the brass is too small or the chamber is too big. Maybe compare some unfired Winchester and Norma to the fired brass and let us know what you find. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7-300 Win. Brass options?
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