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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7WSM barrel questions
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<blockquote data-quote="bedrok" data-source="post: 494169" data-attributes="member: 25202"><p>I'm getting a new barrel for my 7WSM and they said they'd start the lands anywhere I want (they said rather than providing a dimension from bolt face to start of lands, give them a dummy round and tell them if I want it to touch, be a specified distance, etc.) My thoughts are seating a 168gr. berger where it will just fit in the mag. and tell them to make the lands touch. This makes the O.A.L. .018 longer than max and would make a round loaded with a 160gr. Accubond exactly max. (it's .018 shorter from full dia. to tip) if it were touching. My thinking is if the Bergers shoot better with little or no jump, I'm covered and if they want a jump I can set it back. Most posts here and elsewhere are saying .010 to .015 jump is most accurate <strong>so has anyone seen best accuracy with no jump? </strong>The other question is twist. I was going to get a 1 : 9.5 which is fine according to Berger but I'm tempted to go with a 1 : 9 just to be sure. Suggestions from people with experience with this caliber and bullet would be welcome. Thanks</p></blockquote><p></p>
[QUOTE="bedrok, post: 494169, member: 25202"] I'm getting a new barrel for my 7WSM and they said they'd start the lands anywhere I want (they said rather than providing a dimension from bolt face to start of lands, give them a dummy round and tell them if I want it to touch, be a specified distance, etc.) My thoughts are seating a 168gr. berger where it will just fit in the mag. and tell them to make the lands touch. This makes the O.A.L. .018 longer than max and would make a round loaded with a 160gr. Accubond exactly max. (it's .018 shorter from full dia. to tip) if it were touching. My thinking is if the Bergers shoot better with little or no jump, I'm covered and if they want a jump I can set it back. Most posts here and elsewhere are saying .010 to .015 jump is most accurate [B]so has anyone seen best accuracy with no jump? [/B]The other question is twist. I was going to get a 1 : 9.5 which is fine according to Berger but I'm tempted to go with a 1 : 9 just to be sure. Suggestions from people with experience with this caliber and bullet would be welcome. Thanks [/QUOTE]
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7WSM barrel questions
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