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Hunting
Long Range Hunting & Shooting
How much do we really gain from the A.I. rifles.
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<blockquote data-quote="J E Custom" data-source="post: 1403043" data-attributes="member: 2736"><p>One reason the 280 AI is much faster is because the case length to neck junction is .100 thousandths longer than the 30/06 parent case.</p><p>when you AI these cases, you don't change this dimension.</p><p>So a 30/06 AI will has a greater case capacity than the 30/06. and the 280 has more case capacity than the 30/06 due to the longer case body. And the 280 AI has a case capacity greater than the 280.</p><p></p><p>Case length to shoulder neck junction is 2.109 on the 30/06</p><p>Case length to shoulder neck junction for the 280 is 2.199 (.100 thousandths difference).</p><p></p><p>.100 thousandths is enough to render the firing pin useless in a 280 if a 270 or 30/06 round is loaded in the 280 chamber. when comparing the 270, 280 and 30/06 AIs the 280 AI has the most case capacity of all three.</p><p></p><p>The 270 Winchester is longer than the 30/06 (2.155) for the same reason, but is still .044 shorter than the 280 Remington. The 280 Remington will hold more powder than any other 30/06 based cartridge and the 280 AI is just about at the maximum case capacity for the 30/06 base case. Overall case lengths vary because of the neck length, but powder capacity is determined by case volume from the case head/Web to the neck shoulder junction.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1403043, member: 2736"] One reason the 280 AI is much faster is because the case length to neck junction is .100 thousandths longer than the 30/06 parent case. when you AI these cases, you don't change this dimension. So a 30/06 AI will has a greater case capacity than the 30/06. and the 280 has more case capacity than the 30/06 due to the longer case body. And the 280 AI has a case capacity greater than the 280. Case length to shoulder neck junction is 2.109 on the 30/06 Case length to shoulder neck junction for the 280 is 2.199 (.100 thousandths difference). .100 thousandths is enough to render the firing pin useless in a 280 if a 270 or 30/06 round is loaded in the 280 chamber. when comparing the 270, 280 and 30/06 AIs the 280 AI has the most case capacity of all three. The 270 Winchester is longer than the 30/06 (2.155) for the same reason, but is still .044 shorter than the 280 Remington. The 280 Remington will hold more powder than any other 30/06 based cartridge and the 280 AI is just about at the maximum case capacity for the 30/06 base case. Overall case lengths vary because of the neck length, but powder capacity is determined by case volume from the case head/Web to the neck shoulder junction. J E CUSTOM [/QUOTE]
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How much do we really gain from the A.I. rifles.
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