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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.375 RUM with 350 MTH performance??
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<blockquote data-quote="J E Custom" data-source="post: 1691308" data-attributes="member: 2736"><p>Being a Big RUM fan and building wildcats off the cases. they are limited to around 112 grains of powder unless you go hog wild and push the case to it's Max volume (About 118 to 119 grains). Normally they have about 103 grains of capacity and if this is the plan, 270 to 300 grain bullets are about ideal. IF you AI it, you may get the performance from 325 grain bullets.</p><p></p><p>In order to use the 350 class of bullets you will need to go with something like the 378 Weatherby case for more capacity in my opinion.</p><p></p><p>The 300s may not have have the BCs of the 350 but the added velocity will make up any differences.</p><p></p><p>As to free bore, the RUM comes with a generous free bore of .175 with a .464 to the lands with secant ojive bullets. If a single shot, You wont be limited to mag length of the Remington and could look for a single shot action that Is much stronger.</p><p></p><p>I would also recommend that you have Dave Manson cut your reamer with the desired free bore to avoid having to use a throater on a standard chamber I find that I get better accuracy if everything is done with a custom reamer at one time.</p><p></p><p>Just some thoughts for your new build.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1691308, member: 2736"] Being a Big RUM fan and building wildcats off the cases. they are limited to around 112 grains of powder unless you go hog wild and push the case to it's Max volume (About 118 to 119 grains). Normally they have about 103 grains of capacity and if this is the plan, 270 to 300 grain bullets are about ideal. IF you AI it, you may get the performance from 325 grain bullets. In order to use the 350 class of bullets you will need to go with something like the 378 Weatherby case for more capacity in my opinion. The 300s may not have have the BCs of the 350 but the added velocity will make up any differences. As to free bore, the RUM comes with a generous free bore of .175 with a .464 to the lands with secant ojive bullets. If a single shot, You wont be limited to mag length of the Remington and could look for a single shot action that Is much stronger. I would also recommend that you have Dave Manson cut your reamer with the desired free bore to avoid having to use a throater on a standard chamber I find that I get better accuracy if everything is done with a custom reamer at one time. Just some thoughts for your new build. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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.375 RUM with 350 MTH performance??
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