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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Let's argue about BC's
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<blockquote data-quote="Michael Eichele" data-source="post: 474899" data-attributes="member: 1007"><p>In the weather I run them in at the velocities I run them using your example of a .75 versus a .8 is more like 3". That said, most of my loads dont sport BC's that high (with the exception of my Edge). With average bullets running .around .500 and changing them by 0.050, the margin is huge. Like 8-9" huge. I am sure that you can see 8-9". Using my 208 AMAX load comparing .648 versus even a small amount like .625, the error is about 2.5". This is more than enough to notice if things are running high or low. If you cant notice that, dont hold it against me for being able to do so. In addition, the degree of accuracy of both of my primary rifles is better than average. When they consistently throw down groups in the .4 MOA bracket and sometimes less at 1/2 mile on a windless day, I get a pretty good idea of what my BC's are when on multiple days I can predict where the are going to be. I am sure you know when your groups are low or high even when they are in the 10 ring or X ring for that matter. The way I see it, groups that are consistently low even by an inch or two are noticable. Unfortunately, most scopes are not fine enough to adjust that out. Thank Goodness we have math to at least take the lows and highs and add them to the equasions for BC purposes among others.</p><p></p><p>All I will say is my methods are working for me. I have no intentions of looking for a new method. When I start scratching my head or start missing shots that are unexplained, I will look for a new method. Or when I can afford doppler radar whichever comes first. Untill then, double chronies and drop tests will have to work. IMHO those are not too bad a way to figure out how to kill a small target at 1/2 mile. G1 or G7.</p><p></p><p>Other than that, we will agree on some things here and will have to respectfully agree to disagree on the others.</p><p></p><p>Regards!</p><p></p><p>M</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 474899, member: 1007"] In the weather I run them in at the velocities I run them using your example of a .75 versus a .8 is more like 3". That said, most of my loads dont sport BC's that high (with the exception of my Edge). With average bullets running .around .500 and changing them by 0.050, the margin is huge. Like 8-9" huge. I am sure that you can see 8-9". Using my 208 AMAX load comparing .648 versus even a small amount like .625, the error is about 2.5". This is more than enough to notice if things are running high or low. If you cant notice that, dont hold it against me for being able to do so. In addition, the degree of accuracy of both of my primary rifles is better than average. When they consistently throw down groups in the .4 MOA bracket and sometimes less at 1/2 mile on a windless day, I get a pretty good idea of what my BC's are when on multiple days I can predict where the are going to be. I am sure you know when your groups are low or high even when they are in the 10 ring or X ring for that matter. The way I see it, groups that are consistently low even by an inch or two are noticable. Unfortunately, most scopes are not fine enough to adjust that out. Thank Goodness we have math to at least take the lows and highs and add them to the equasions for BC purposes among others. All I will say is my methods are working for me. I have no intentions of looking for a new method. When I start scratching my head or start missing shots that are unexplained, I will look for a new method. Or when I can afford doppler radar whichever comes first. Untill then, double chronies and drop tests will have to work. IMHO those are not too bad a way to figure out how to kill a small target at 1/2 mile. G1 or G7. Other than that, we will agree on some things here and will have to respectfully agree to disagree on the others. Regards! M [/QUOTE]
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