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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Rebuilding my 375 RUM
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<blockquote data-quote="J E Custom" data-source="post: 817651" data-attributes="member: 2736"><p><strong>Re: building a 375 h&h</strong></p><p></p><p>Sounds like you know what you want.</p><p></p><p>I have a few comments about the 375 H&H (Not bad at all).</p><p></p><p>The old H&Hs were designed to use Cordite Powder (Long sticks that were counted instead of </p><p>being weighed) Hence the long case and shoulder angle.</p><p></p><p>One of the problems of "ANY" dangerous game cartridge loaded hot is pressure in high temperatures</p><p>The H&H had lots of body taper helping extraction in these conditions.</p><p></p><p>The 416 Rem is a good example. With factory loads and velocities it can become edgy and hard to extract in high temperatures. Remington Wanted to meet or beat the old Rigby with lots more case capacity and the results were High pressure at high temperature.</p><p></p><p>I have one and love to shoot it but in hot weather I decline and move on to something with more case capacity loaded at the same velocity. This avoids any problems that could cause injury from</p><p>a bad *** animal intent on ruining your day.</p><p></p><p>I personally would stay with the Rum And load down to H&H velocities rather than load the H&H</p><p>hot. There is no doubt that with modern powders you can get more power from The H&H.</p><p></p><p>I am the last person to try and talk someone out of building what they want, so don't take this</p><p>that way. I just wanted to share My experiences with Some of the old cartridges that were designed</p><p>for much lower pressures than the modern rifles/powder can produce.</p><p></p><p>Most of the older cartridges were designed for less than 50,000 psi compared to 65,000 psi of modern</p><p>rifles and brass.</p><p></p><p>Anyway, have fun on your build. (And build what you want in spite of what we say)</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 817651, member: 2736"] [b]Re: building a 375 h&h[/b] Sounds like you know what you want. I have a few comments about the 375 H&H (Not bad at all). The old H&Hs were designed to use Cordite Powder (Long sticks that were counted instead of being weighed) Hence the long case and shoulder angle. One of the problems of "ANY" dangerous game cartridge loaded hot is pressure in high temperatures The H&H had lots of body taper helping extraction in these conditions. The 416 Rem is a good example. With factory loads and velocities it can become edgy and hard to extract in high temperatures. Remington Wanted to meet or beat the old Rigby with lots more case capacity and the results were High pressure at high temperature. I have one and love to shoot it but in hot weather I decline and move on to something with more case capacity loaded at the same velocity. This avoids any problems that could cause injury from a bad *** animal intent on ruining your day. I personally would stay with the Rum And load down to H&H velocities rather than load the H&H hot. There is no doubt that with modern powders you can get more power from The H&H. I am the last person to try and talk someone out of building what they want, so don't take this that way. I just wanted to share My experiences with Some of the old cartridges that were designed for much lower pressures than the modern rifles/powder can produce. Most of the older cartridges were designed for less than 50,000 psi compared to 65,000 psi of modern rifles and brass. Anyway, have fun on your build. (And build what you want in spite of what we say) J E CUSTOM [/QUOTE]
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Rebuilding my 375 RUM
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