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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Twist Rate?
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<blockquote data-quote="7magcreedmoor" data-source="post: 960483" data-attributes="member: 48559"><p>I run 180 VLDs in a PacNor 3 groove with a 9 twist, been great so far. My home state ranges are all less than 1200 ft above sea level, no stability problems. 7rem mag running 2905 avg muzzle velocity, 2.2 inches at 300 yards for the first three shots out of cold bore. It does get looser when hot if I shoot fast. I ordered another barrel with the same specs but a heavier contour for my next project in 280 AI, the 7mag barrel is factory contour (pretty skinny- .5ish at 26 inches) and that is my one regret concerning that barrel.</p></blockquote><p></p>
[QUOTE="7magcreedmoor, post: 960483, member: 48559"] I run 180 VLDs in a PacNor 3 groove with a 9 twist, been great so far. My home state ranges are all less than 1200 ft above sea level, no stability problems. 7rem mag running 2905 avg muzzle velocity, 2.2 inches at 300 yards for the first three shots out of cold bore. It does get looser when hot if I shoot fast. I ordered another barrel with the same specs but a heavier contour for my next project in 280 AI, the 7mag barrel is factory contour (pretty skinny- .5ish at 26 inches) and that is my one regret concerning that barrel. [/QUOTE]
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Twist Rate?
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