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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Sierra 6.5mm 130 grain TGK Twist Rate.
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<blockquote data-quote="Laguna Freak" data-source="post: 1955987" data-attributes="member: 87188"><p>@ 3050 fps, 80 F, 29.8" Hg I'm getting the following 1:9 twist Sg from JBM:</p><p>STGK 130 = 1.814</p><p>Berg CH 135 = 1.549</p><p>Berg VLD Hunt 130 = 1.495</p><p>Swift Sii 130 = 1.888</p><p>Nos AB 130 = 2.029</p><p>Nos ABLR 129 = 1.873</p></blockquote><p></p>
[QUOTE="Laguna Freak, post: 1955987, member: 87188"] @ 3050 fps, 80 F, 29.8” Hg I’m getting the following 1:9 twist Sg from JBM: STGK 130 = 1.814 Berg CH 135 = 1.549 Berg VLD Hunt 130 = 1.495 Swift Sii 130 = 1.888 Nos AB 130 = 2.029 Nos ABLR 129 = 1.873 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Sierra 6.5mm 130 grain TGK Twist Rate.
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