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Hunting
Long Range Hunting & Shooting
7-300 or 28 nosler
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<blockquote data-quote="Alex Wheeler" data-source="post: 1367902" data-attributes="member: 101859"><p>Ok, so first case head separations are not from over pressure, usually it is caused from setting the shoulder back too far which causes the case to stretch and thin just above the web. The 25-06 was an obvious overcharge. You dont "run them that hot".</p><p>The way it works is, under pressure things stretch. The chamber expands as well as the front ring of the receiver. The steel does not yield but the brass does. After the pressure drops the steel returns to original form while the brass does not. Thats why you get stiff bolt lift. Thats why when you run high pressures you cant rechamber a fired case. And yes, if you can neck size you are not running high pressure. Unless your forcing the bolt on tight cases.</p><p>I dont think I want any more of your reloading advice after reading you last post. Many in competition run over 70k psi routinely and no one blows case heads. Thats poor reloading technique, and dangerous to the people around you.</p></blockquote><p></p>
[QUOTE="Alex Wheeler, post: 1367902, member: 101859"] Ok, so first case head separations are not from over pressure, usually it is caused from setting the shoulder back too far which causes the case to stretch and thin just above the web. The 25-06 was an obvious overcharge. You dont "run them that hot". The way it works is, under pressure things stretch. The chamber expands as well as the front ring of the receiver. The steel does not yield but the brass does. After the pressure drops the steel returns to original form while the brass does not. Thats why you get stiff bolt lift. Thats why when you run high pressures you cant rechamber a fired case. And yes, if you can neck size you are not running high pressure. Unless your forcing the bolt on tight cases. I dont think I want any more of your reloading advice after reading you last post. Many in competition run over 70k psi routinely and no one blows case heads. Thats poor reloading technique, and dangerous to the people around you. [/QUOTE]
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