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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
220 swift 12twist
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<blockquote data-quote="J E Custom" data-source="post: 1303001" data-attributes="member: 2736"><p>Most Of the high velocity .224s like the swift and 22/250 have 1 in 14 twist for 50 to 55 grain bullets. The 1 in 12 should work for the 60 to 70 grain bullets at the velocities the 220 Swift can produce. </p><p></p><p>If you go with a twist rate that Is to fast you can have jacket problems (Jacket to core separation)</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1303001, member: 2736"] Most Of the high velocity .224s like the swift and 22/250 have 1 in 14 twist for 50 to 55 grain bullets. The 1 in 12 should work for the 60 to 70 grain bullets at the velocities the 220 Swift can produce. If you go with a twist rate that Is to fast you can have jacket problems (Jacket to core separation) J E CUSTOM [/QUOTE]
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220 swift 12twist
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