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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
5mm smc
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<blockquote data-quote="Fiftydriver" data-source="post: 158914" data-attributes="member: 10"><p>GG,</p><p></p><p>I have read many of McPhersons test results on this round and to be honest, in nearly every one, top accuracy was several hundred fps off what was possible with this chamberings max output levels.</p><p></p><p>Not sure why but in nearly every case that was so. Unfortunately, the extreme velocity is generally the point pounded on and then as you read more about the round you find out accuracy really suffers at extreme velocity. Not only that, at the accuracy level he was reporting in the two tests I read, he was using an accuracy load that was identical to most 204 loads......</p><p></p><p>I am with you, not sold on it.</p><p></p><p>I will admit that he may well have had to much twist rate in those barrels for the speed they were pushing to and that would explain the poor accuracy at higher speeds and fine accuracy at lower velocity but one would think this would have been anticipated and planned for????</p><p></p><p>Anyway, its a neat idea but like you, I have not decided to totally believe the idea.</p><p></p><p>Its really nothing new, its basically 1/2 a weatherby shoulder and we all know that the freebore on those rounds generate more velocity then the actual shoulder design ever did.</p><p></p><p>Just my opinion. Always neat to see something new come out and will be watching this more and more but not sold on the idea yet.</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 158914, member: 10"] GG, I have read many of McPhersons test results on this round and to be honest, in nearly every one, top accuracy was several hundred fps off what was possible with this chamberings max output levels. Not sure why but in nearly every case that was so. Unfortunately, the extreme velocity is generally the point pounded on and then as you read more about the round you find out accuracy really suffers at extreme velocity. Not only that, at the accuracy level he was reporting in the two tests I read, he was using an accuracy load that was identical to most 204 loads...... I am with you, not sold on it. I will admit that he may well have had to much twist rate in those barrels for the speed they were pushing to and that would explain the poor accuracy at higher speeds and fine accuracy at lower velocity but one would think this would have been anticipated and planned for???? Anyway, its a neat idea but like you, I have not decided to totally believe the idea. Its really nothing new, its basically 1/2 a weatherby shoulder and we all know that the freebore on those rounds generate more velocity then the actual shoulder design ever did. Just my opinion. Always neat to see something new come out and will be watching this more and more but not sold on the idea yet. Kirby Allen(50) [/QUOTE]
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