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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 x 284 SD problems
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<blockquote data-quote="Varmint Hunter" data-source="post: 68227" data-attributes="member: 313"><p>I'm working with a new 6.5x284. The rifle has a 29.5" Lilja, 8 twist, 3 groove barrel with a Vais brake.</p><p></p><p>I've been loading 142 SMK, 139 Scenar &amp; 140 A-MAX bullets. Loaded mostly with H4831sc but have tried a few loads with RE22 and IMR 4350. Using Lapua prepped brass and Fed 210M primers.</p><p></p><p>With all bullets loaded .005" <strong>into</strong> the lands I'm getting SD's between 20 &amp; 30. The accuracy is ho-hum with groups running between .75 - 1.5" @ 200 yards. In desperation, I loaded all three different bullets at .005" <strong>off</strong> the lands and most of the SD's dropped. A load of 51.5 H4831sc gave SD's of 40 with bullets into the lands but dropped to an SD of 5 when loaded off the rifling. Had a few other single digit SD's when bullets were loaded .005" off the rifling.</p><p></p><p>Normally, loading into the rifling doesn't cause SD to raise and frequently causes it to drop. Does this situation indicate something?</p><p></p><p>Anyone else using a Lilja 3 groove in the 6.5x284?</p><p></p><p>VH</p></blockquote><p></p>
[QUOTE="Varmint Hunter, post: 68227, member: 313"] I'm working with a new 6.5x284. The rifle has a 29.5" Lilja, 8 twist, 3 groove barrel with a Vais brake. I've been loading 142 SMK, 139 Scenar & 140 A-MAX bullets. Loaded mostly with H4831sc but have tried a few loads with RE22 and IMR 4350. Using Lapua prepped brass and Fed 210M primers. With all bullets loaded .005" [b]into[/b] the lands I'm getting SD's between 20 & 30. The accuracy is ho-hum with groups running between .75 - 1.5" @ 200 yards. In desperation, I loaded all three different bullets at .005" [b]off[/b] the lands and most of the SD's dropped. A load of 51.5 H4831sc gave SD's of 40 with bullets into the lands but dropped to an SD of 5 when loaded off the rifling. Had a few other single digit SD's when bullets were loaded .005" off the rifling. Normally, loading into the rifling doesn't cause SD to raise and frequently causes it to drop. Does this situation indicate something? Anyone else using a Lilja 3 groove in the 6.5x284? VH [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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6.5 x 284 SD problems
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