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The Basics, Starting Out
Whats the difference between these 2 .338 magnums
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<blockquote data-quote="J E Custom" data-source="post: 215122" data-attributes="member: 2736"><p>My guess is that the .338 Express uses the 404 case necked down.</p><p></p><p>This would make the 338 Express have a rim dia. of .537 and it has a shorter</p><p>case body ( Less powder capacity than the .338 Edge )</p><p></p><p>There is a cartrige called the .338 Abe Express that has a rim dia.</p><p>of .541 an a case length of 2.240. </p><p></p><p>Also I think the Edge is based on a 300 RUM case with a .534 rim dia.</p><p>( standard magnum bolt face )</p><p></p><p>The .338 RUM is shorter than all other RUM's ( Case length is 2.295 with</p><p>a over all case length of 3.60 ) </p><p></p><p>The other RUM's have a case length of 2.845 and the same 3.60 overall case </p><p>length to fit in the magnum length actions.Note: what I'm calling 'over all case</p><p>length' is just the brass not the loaded round!!!!!</p><p></p><p>I looked into the Dakota rifles and they use the 404 case on most of thier</p><p>rifles and they had a case head dia. of (.545 )</p><p>requiring opening the bolt face on all standard magnum bolts.</p><p></p><p>If I am wrong about any of this please correct me.</p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 215122, member: 2736"] My guess is that the .338 Express uses the 404 case necked down. This would make the 338 Express have a rim dia. of .537 and it has a shorter case body ( Less powder capacity than the .338 Edge ) There is a cartrige called the .338 Abe Express that has a rim dia. of .541 an a case length of 2.240. Also I think the Edge is based on a 300 RUM case with a .534 rim dia. ( standard magnum bolt face ) The .338 RUM is shorter than all other RUM's ( Case length is 2.295 with a over all case length of 3.60 ) The other RUM's have a case length of 2.845 and the same 3.60 overall case length to fit in the magnum length actions.Note: what I'm calling 'over all case length' is just the brass not the loaded round!!!!! I looked into the Dakota rifles and they use the 404 case on most of thier rifles and they had a case head dia. of (.545 ) requiring opening the bolt face on all standard magnum bolts. If I am wrong about any of this please correct me. J E CUSTOM [/QUOTE]
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Whats the difference between these 2 .338 magnums
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