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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Question on body taper.
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<blockquote data-quote="Aldon" data-source="post: 339197" data-attributes="member: 20047"><p>Thanks for the link Rock.</p><p> </p><p>I was aware that the Shoulder angle on the AI was increased to ~ 40 degrees.</p><p> </p><p>At one point the article does mention straightening the case but it appears it still has the taper that the 30-06 does. It straightens the case at the top where the sharper angle increases the length a bit. Thereby increasing capacity.</p><p> </p><p>In order to clarify the question that I am trying to get answered, why would one not use a straight walled design as opposed to the slightly tapered one on the 30-06 to get a couple of more grains capacity.</p><p> </p><p>On 6mmbr site in the section on 7mm's it discusses the changes Shehane did to get the additional performance out of the 284. It says he essentially straightened the case taper an additional .010 which seems to be something one could do in addition to changing the shoulder angle when going to the Ackley AI.</p><p> </p><p>Or is this .010 straightening already part of the change when modifying to the Ackley AI?</p></blockquote><p></p>
[QUOTE="Aldon, post: 339197, member: 20047"] Thanks for the link Rock. I was aware that the Shoulder angle on the AI was increased to ~ 40 degrees. At one point the article does mention straightening the case but it appears it still has the taper that the 30-06 does. It straightens the case at the top where the sharper angle increases the length a bit. Thereby increasing capacity. In order to clarify the question that I am trying to get answered, why would one not use a straight walled design as opposed to the slightly tapered one on the 30-06 to get a couple of more grains capacity. On 6mmbr site in the section on 7mm's it discusses the changes Shehane did to get the additional performance out of the 284. It says he essentially straightened the case taper an additional .010 which seems to be something one could do in addition to changing the shoulder angle when going to the Ackley AI. Or is this .010 straightening already part of the change when modifying to the Ackley AI? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Question on body taper.
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