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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
55 gr. Bullets at 600 Yards??? :confused:
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<blockquote data-quote="Stysh" data-source="post: 21399" data-attributes="member: 280"><p>Gary & Wolverine</p><p></p><p>Thanks for your responses. I may be thinking about this too much. And still am . . .</p><p></p><p>The two small groups (5" and 5 3/4") with the .224" 55 gr. bullets were shot about half an hour apart. So were the two PPC groups of 10" and 11". While I waited for 'let-ups' with all groups, I really didn't get any, and don't think I read the wind all that well. </p><p></p><p>What is of interest is that when I picked up this varmint rifle last year with the new barrel installed, the smith (a top BR smith) told me the chamber ended up less than .0001" out from the bore. Even this top guy was obviously proud of this chambering job, and invited me to look at it through the borescope. It was perfectly concentric. I have done minimal range work with this barrel, just verifing a good load (capable of low .2's at 100), and have used it almost exclusively on groundhogs. My impressions from field shooting of this barrel and chambering (subject to all the randomness, vagaries and interpretation issues of field shooting) indicate that this barrel shoots extremely well, and doesn't require the windage hold that previous barrels did shooting the same bullets. This barrel/chambering shoots extremely well, far better than the almost identical barrel (Hart LV) it replaced, done by the same smith with the same reamer. </p><p></p><p>What I have been wondering is, is it possible that this barrel is a partial 'Hummer'? And could the excellent chambering job (near-perfect, even for BR standards) be a significant contributing factor to Hummer-like (wind deflection resistance) qualities? Or, is it as you suggest, just the luck of the draw with respect to the wind. (I realize the statistical insignificance of two groups!) </p><p></p><p>Anyways, fun to think about. And as I have two 700S actions (.243 and 6mm) waiting to be barreled for longer distance groundhog shooting (~500 to 800 yards), I am paying close attention to theoretical and real world ballistic performance.</p><p>Thanks again.</p><p></p><p>Stysh</p></blockquote><p></p>
[QUOTE="Stysh, post: 21399, member: 280"] Gary & Wolverine Thanks for your responses. I may be thinking about this too much. And still am . . . The two small groups (5" and 5 3/4") with the .224" 55 gr. bullets were shot about half an hour apart. So were the two PPC groups of 10" and 11". While I waited for 'let-ups' with all groups, I really didn't get any, and don't think I read the wind all that well. What is of interest is that when I picked up this varmint rifle last year with the new barrel installed, the smith (a top BR smith) told me the chamber ended up less than .0001" out from the bore. Even this top guy was obviously proud of this chambering job, and invited me to look at it through the borescope. It was perfectly concentric. I have done minimal range work with this barrel, just verifing a good load (capable of low .2's at 100), and have used it almost exclusively on groundhogs. My impressions from field shooting of this barrel and chambering (subject to all the randomness, vagaries and interpretation issues of field shooting) indicate that this barrel shoots extremely well, and doesn't require the windage hold that previous barrels did shooting the same bullets. This barrel/chambering shoots extremely well, far better than the almost identical barrel (Hart LV) it replaced, done by the same smith with the same reamer. What I have been wondering is, is it possible that this barrel is a partial 'Hummer'? And could the excellent chambering job (near-perfect, even for BR standards) be a significant contributing factor to Hummer-like (wind deflection resistance) qualities? Or, is it as you suggest, just the luck of the draw with respect to the wind. (I realize the statistical insignificance of two groups!) Anyways, fun to think about. And as I have two 700S actions (.243 and 6mm) waiting to be barreled for longer distance groundhog shooting (~500 to 800 yards), I am paying close attention to theoretical and real world ballistic performance. Thanks again. Stysh [/QUOTE]
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55 gr. Bullets at 600 Yards??? :confused:
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