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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cant get my 7mm rum Sendero to group
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<blockquote data-quote="AZShooter" data-source="post: 677123" data-attributes="member: 5219"><p>Just checked Remington's website and they say the Sendaro SF II in 7 RUM has a 1 in 9 1/2 twist. For grins I looked at the XCR II and it has a 1 in 9 1/4 twist. Berger suggests a 1 in 9 for either the VLD or hybrid 180s. </p><p></p><p> You didn't say which model Sendaro. IIRC the older Sendaros had the 1 in 9 1/4 twist. Perhaps your friend has the 9 1/4 twist and you have the 9 1/2?</p><p></p><p>I think you should shoot something like a 160 accubond or maybe a 168 Sierra Matchking as a control. There is a possibility your rifle won't stabilize the 180s. </p><p></p><p>FYI I had one of the early original Sendaros in 7 RUM and it didn't shoot well till I torqued the action screws to HS Precision's specs. Never tried any VLDs back then. Unfortunately I cannot remember what the torque numbers are now. You might want to ask HS.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 677123, member: 5219"] Just checked Remington's website and they say the Sendaro SF II in 7 RUM has a 1 in 9 1/2 twist. For grins I looked at the XCR II and it has a 1 in 9 1/4 twist. Berger suggests a 1 in 9 for either the VLD or hybrid 180s. You didn't say which model Sendaro. IIRC the older Sendaros had the 1 in 9 1/4 twist. Perhaps your friend has the 9 1/4 twist and you have the 9 1/2? I think you should shoot something like a 160 accubond or maybe a 168 Sierra Matchking as a control. There is a possibility your rifle won't stabilize the 180s. FYI I had one of the early original Sendaros in 7 RUM and it didn't shoot well till I torqued the action screws to HS Precision's specs. Never tried any VLDs back then. Unfortunately I cannot remember what the torque numbers are now. You might want to ask HS. [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
Cant get my 7mm rum Sendero to group
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