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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
predator rifle
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<blockquote data-quote="Long Time Long Ranger" data-source="post: 374083" data-attributes="member: 505"><p>For best results you would need to twist it for either the light bullet or the heavy bullet. If not then you have to twist for the heavy 107 and the 75 will still shoot in it. My rifles shooting the 107 are the 240 gibbs, 240 wby and the 243 AI. With the velocities of those I can stabilize the 107 with a 1-10 twist but most like a 1-8 or 1-9 if they shoot the 107 exclusively. With the 243 I think you will need to go with at least a 1-9 for best results in that velocity range. Some of the 243 experts would need to come in here and answer that one for you.</p><p></p><p>I have one of my 243 AI's set up with a 1-12 twist for the light noslers and am shooting the 55 grain varmint bullet 4200 fps into under 1" at 300 yards. They average around 5/8"-3/4" for a three shot group at 300 yards. It is pure he!! on varmints out to 500 yards. The wind takes that little bullet for a ride though on long distance shots.</p></blockquote><p></p>
[QUOTE="Long Time Long Ranger, post: 374083, member: 505"] For best results you would need to twist it for either the light bullet or the heavy bullet. If not then you have to twist for the heavy 107 and the 75 will still shoot in it. My rifles shooting the 107 are the 240 gibbs, 240 wby and the 243 AI. With the velocities of those I can stabilize the 107 with a 1-10 twist but most like a 1-8 or 1-9 if they shoot the 107 exclusively. With the 243 I think you will need to go with at least a 1-9 for best results in that velocity range. Some of the 243 experts would need to come in here and answer that one for you. I have one of my 243 AI's set up with a 1-12 twist for the light noslers and am shooting the 55 grain varmint bullet 4200 fps into under 1" at 300 yards. They average around 5/8"-3/4" for a three shot group at 300 yards. It is pure he!! on varmints out to 500 yards. The wind takes that little bullet for a ride though on long distance shots. [/QUOTE]
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