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Strickly groundhogs
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<blockquote data-quote="rjb" data-source="post: 8038" data-attributes="member: 1145"><p>Actually the long range target fellows are finding a twist somewhere in between say 1:8.5 to be the best of both worlds. They are available from Hart, Kreiger or PacNor maybe premium barrel makers. It also depends on barrel lenght somewhat. If your building a "carry" rifle you may prefer 26-28 inch tube. Then the 1:8 twist will assure the heavy bullets run true.</p><p>For target work some use 30 inch or longer barrels. When the actual 142 gr velocity can</p><p>exceed 3000 fps then the 1:9 can also run the heavy bullets and the lighter weights at</p><p>higher velocities will stay together way out there too. Note bullet stablity or instablity</p><p>usually does not show up in the first 100-200 yards. At 300-400 is where bullet flight is going well or the bullet may tumble and break up. So test long range to be sure. rjb</p></blockquote><p></p>
[QUOTE="rjb, post: 8038, member: 1145"] Actually the long range target fellows are finding a twist somewhere in between say 1:8.5 to be the best of both worlds. They are available from Hart, Kreiger or PacNor maybe premium barrel makers. It also depends on barrel lenght somewhat. If your building a "carry" rifle you may prefer 26-28 inch tube. Then the 1:8 twist will assure the heavy bullets run true. For target work some use 30 inch or longer barrels. When the actual 142 gr velocity can exceed 3000 fps then the 1:9 can also run the heavy bullets and the lighter weights at higher velocities will stay together way out there too. Note bullet stablity or instablity usually does not show up in the first 100-200 yards. At 300-400 is where bullet flight is going well or the bullet may tumble and break up. So test long range to be sure. rjb [/QUOTE]
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