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APS 6mm-250 w/105 Berger Strikes...........5 times on the same doe

 
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Old 12-11-2006, 09:59 AM
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Re: APS 6mm-250 w/105 Berger Strikes...........5 times on the same doe

Dave,

Many african big game hunters have tested fast twist bullets when using big bore solids and have reported that the faster then needed twist helps bullet stability after impact to penetrate in a straight line which is always better then a bullet veering off course.

As far as expanding bullets go, higher RPM certainly stress a bullets jacket to a higher degree then lower RPMs which would more then likely result in more dramatic bullet deformation upon impact to some degree, how much I can not say.

I will say that I have shot several high intensity varmint rifles in rounds such as the 22-6mm AI and I would say your comments are accurate, I have just not tested in a big game rifle.

I can say that my 7mm AM using the J-4 based 200 gr ULD RBBT performs identically no matter if its shot out of a 1-7 twist, a 1-8 twist, a 1-8.7 twist or a 1-9 twist. On game up to the size of heavy deer, they all perform so close to identical its impossible to tell a difference, caliber entrance hole and 3/4" exit with bullet expansion beginning after roughly 6" of penetration. In this case velocity made no difference and really neither did range testing on game from 300 to 850 yards this year.

Like rifles, bullets have their own personality as well I suppose.

Kirby Allen(50)
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