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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="paphil" data-source="post: 475629" data-attributes="member: 17745"><p>Having shot identical rifles with identical amunition under identical conditions, I can tell you that one size BC does not fit all . I am not fudging inputs but using the exact data gathered from shooting and using the conditions at the time and place of the test. The first step of our process used the mfg BC and can include a chronograph . Very rarely will the test shot arc of flight fit the drop chart as predicted by the program. It will be close, for most close enough, but not exact. Some guys think hitting a 5 gallon bucket at 100 yards is good enough, I'm a little more particular. Once i've gone through all the steps and come up with a "true BC", The drop data will be exact out to bullet destabalazation at subsonic speeds and the program can use the data to calculate for additional altitudes and temperatures. A good groundhog gun that is dead on at 1000 yards but is 3 inches high at 500 is not very useful to me. It probably would be fine for big game. I am very happy with the results of the way we set up drop charts and if my chart matches my guns groups , why argue with success?</p></blockquote><p></p>
[QUOTE="paphil, post: 475629, member: 17745"] Having shot identical rifles with identical amunition under identical conditions, I can tell you that one size BC does not fit all . I am not fudging inputs but using the exact data gathered from shooting and using the conditions at the time and place of the test. The first step of our process used the mfg BC and can include a chronograph . Very rarely will the test shot arc of flight fit the drop chart as predicted by the program. It will be close, for most close enough, but not exact. Some guys think hitting a 5 gallon bucket at 100 yards is good enough, I'm a little more particular. Once i've gone through all the steps and come up with a "true BC", The drop data will be exact out to bullet destabalazation at subsonic speeds and the program can use the data to calculate for additional altitudes and temperatures. A good groundhog gun that is dead on at 1000 yards but is 3 inches high at 500 is not very useful to me. It probably would be fine for big game. I am very happy with the results of the way we set up drop charts and if my chart matches my guns groups , why argue with success? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Let's argue about BC's
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