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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.270 AM or 7mm AM
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<blockquote data-quote="aitch" data-source="post: 170960" data-attributes="member: 9144"><p>Here's an easy one. What's the difference between these two? </p><p> </p><p>If I'm correct, the bullet diameter of the former is .277" and the latter .284". Wouldn't think a .007 dia. difference would make much difference in performance all other things equal.</p><p>I understand that the .270 AM is built on a 300 RUM necked down.</p><p>The 7mm AM is a .338 Lapua necked down?</p><p> </p><p>What are the advantages of one over the other, disadvantages?</p><p>I've read that the Lapua brass is superior.</p><p> </p><p>Thanks for helping a newby,</p><p>Aitch</p></blockquote><p></p>
[QUOTE="aitch, post: 170960, member: 9144"] Here's an easy one. What's the difference between these two? If I'm correct, the bullet diameter of the former is .277" and the latter .284". Wouldn't think a .007 dia. difference would make much difference in performance all other things equal. I understand that the .270 AM is built on a 300 RUM necked down. The 7mm AM is a .338 Lapua necked down? What are the advantages of one over the other, disadvantages? I've read that the Lapua brass is superior. Thanks for helping a newby, Aitch [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.270 AM or 7mm AM
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