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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Light, high BC bullet
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<blockquote data-quote="ss8541" data-source="post: 20899" data-attributes="member: 104"><p>I believe when velocities are within 150 fps that you should go for High BC and accuracy. Lately I have been working with both Warrens' 140 grain J36 (.644), and the 130 grain HV from GS customs (.550), in my 7 STW. I am very impressed with the J36 which I get 3 shot groups in the High .2's and 3's at 3500 to 3550fps from my 27.5", 1-10 twist barrel. I just started shooting the HV's and If I only want to reload a case 2 times I can shoot them at over 4,000 fps(4,070). It looks like with good case life I will shoot them between 3850 and 3900 fps with accuracy in the .2's and .3's. My calcs show this bullet having a clear advantage under 1000 yds. I am working on loads for Mule deer and antelope out to 800 or so. I still haven't shot either of these bullets at anything other then 100 yds yet, but next week I will hopefully shoot both at 600 to get an idea of how they are holding up in comparison to each other. It just seems to me that even with a difference in BC of .094 in favor of the J36's that the extra 300 to 350 fps tips the scales toward the HV bullets. If I was planning to hunt with these past 800 or so I would have to reasess the situation. At that point I would really start worrying about Energy and expantion, not just trajectory and wind. Like I said earlier I have only compared these bullets out to a thousand yards at this point, on a balistics program, and if the J36's shot noticeably better from my gun. Say a difference of .2" or more then I would go for the accuracy.</p><p>Vince Foster</p></blockquote><p></p>
[QUOTE="ss8541, post: 20899, member: 104"] I believe when velocities are within 150 fps that you should go for High BC and accuracy. Lately I have been working with both Warrens' 140 grain J36 (.644), and the 130 grain HV from GS customs (.550), in my 7 STW. I am very impressed with the J36 which I get 3 shot groups in the High .2's and 3's at 3500 to 3550fps from my 27.5", 1-10 twist barrel. I just started shooting the HV's and If I only want to reload a case 2 times I can shoot them at over 4,000 fps(4,070). It looks like with good case life I will shoot them between 3850 and 3900 fps with accuracy in the .2's and .3's. My calcs show this bullet having a clear advantage under 1000 yds. I am working on loads for Mule deer and antelope out to 800 or so. I still haven't shot either of these bullets at anything other then 100 yds yet, but next week I will hopefully shoot both at 600 to get an idea of how they are holding up in comparison to each other. It just seems to me that even with a difference in BC of .094 in favor of the J36's that the extra 300 to 350 fps tips the scales toward the HV bullets. If I was planning to hunt with these past 800 or so I would have to reasess the situation. At that point I would really start worrying about Energy and expantion, not just trajectory and wind. Like I said earlier I have only compared these bullets out to a thousand yards at this point, on a balistics program, and if the J36's shot noticeably better from my gun. Say a difference of .2" or more then I would go for the accuracy. Vince Foster [/QUOTE]
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Light, high BC bullet
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