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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullets vaporizing in mid-air
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<blockquote data-quote="Fiftydriver" data-source="post: 288844" data-attributes="member: 10"><p>A 1-7 twist is VERY fast for a 6mm-284. 1-8 is about as fast as I recommend even for the 115 gr Bergers and if you want to shoot the 105 gr Bergers or A-Max, the conventional 1-8 twist will be very hard on them and you will see either bullet failure in flight or extreme accuracy lose at velocities over 3200 fps, sometimes less.</p><p> </p><p>For those that want to use the 105 gr Bergers or A-Max bullets, I recommend to my customers we use a 1-9 twist barrel for their rifles and with the velocity potential of the 6-284, these work great.</p><p> </p><p>The 107 gr SMK will handle much higher RPM levels as well as velocity levels because their jackets are very thick compared to the Berger, A-Max or Wildcat bullets.</p><p> </p><p>With your 1-7 twist, I would be suprised if you find any bullet other then the 107 gr SMK that will allow you to load anywhere near the velocity potential of that chambering. I would suspect even the 115 gr Bergers may have issues but they may drop your velocity ceiling enough that they may be usible.</p><p> </p><p>Good Luck.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 288844, member: 10"] A 1-7 twist is VERY fast for a 6mm-284. 1-8 is about as fast as I recommend even for the 115 gr Bergers and if you want to shoot the 105 gr Bergers or A-Max, the conventional 1-8 twist will be very hard on them and you will see either bullet failure in flight or extreme accuracy lose at velocities over 3200 fps, sometimes less. For those that want to use the 105 gr Bergers or A-Max bullets, I recommend to my customers we use a 1-9 twist barrel for their rifles and with the velocity potential of the 6-284, these work great. The 107 gr SMK will handle much higher RPM levels as well as velocity levels because their jackets are very thick compared to the Berger, A-Max or Wildcat bullets. With your 1-7 twist, I would be suprised if you find any bullet other then the 107 gr SMK that will allow you to load anywhere near the velocity potential of that chambering. I would suspect even the 115 gr Bergers may have issues but they may drop your velocity ceiling enough that they may be usible. Good Luck. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullets vaporizing in mid-air
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