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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
1000 Yard Gun - .260 vs 6.5 Creedmoor
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<blockquote data-quote="Cold Trigger Finger" data-source="post: 731507" data-attributes="member: 56732"><p>The sides of the case neck have less taper from shoulder to case mouth on the Creed than on the 260 Rem. .</p><p> Myself I think that if a reamer was cut to make a 260 Rem improved but instead of a more standard Ackley Improved where the joint of the neck and shoulder stay where they are and the outside edge of the shoulder is moved toward the case mouth. If the outside of the shoulder was kept where it is but the joint of the shoulder and neck was moved back to the base of the case and some of the neck taper was taken out it would yield an improved 260 with a 40° shoulder a longer neck and parallel sides of the neck.</p><p> The parallel case neck provides better neck tension as it releases the bullet. Supposedly that leads to better accuracy. </p><p> A reamer would also have to be cut for the sizer and seater / crimp die.</p></blockquote><p></p>
[QUOTE="Cold Trigger Finger, post: 731507, member: 56732"] The sides of the case neck have less taper from shoulder to case mouth on the Creed than on the 260 Rem. . Myself I think that if a reamer was cut to make a 260 Rem improved but instead of a more standard Ackley Improved where the joint of the neck and shoulder stay where they are and the outside edge of the shoulder is moved toward the case mouth. If the outside of the shoulder was kept where it is but the joint of the shoulder and neck was moved back to the base of the case and some of the neck taper was taken out it would yield an improved 260 with a 40° shoulder a longer neck and parallel sides of the neck. The parallel case neck provides better neck tension as it releases the bullet. Supposedly that leads to better accuracy. A reamer would also have to be cut for the sizer and seater / crimp die. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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1000 Yard Gun - .260 vs 6.5 Creedmoor
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