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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
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<blockquote data-quote="Eaglet" data-source="post: 416913" data-attributes="member: 3756"><p>To All,</p><p></p><p>Not too long ago, there were no ballistics programs available to civilians that would calculate spin drift and Coriolis; and just in a few months, all the sudden you find them in different flavors. Most programs were for G1 and even some would have the ability to convert to G7 and other G's though the BC's available were for G1. With the introduction of Brian Litz's book and his great contribution of BC values for G7 it marked a place in history of ballistics. G1's BC's are velocity dependent and that's the reason that Sierra bullets gives banded BC's. Meaning different BC's for different ranges of velocities, still is not as accurate as using G7 BC's which are not velocity dependent and will provide much more accurate predictions for long ranges specially those approaching subsonic velocities. G7 will give you more accurate velocity predictions which is extremely important to mark your range limits to remain within supersonic bullet speeds.</p><p>Any ballistic program today worth anything would have to give you the ability to use G7 BC's since it would just be the way to go if you're using any ballistic program with the exception of Load Base 3.0 which, I don't know how, will give you amazingly accurate values with either G1 or G7. ***Read on the link posted above*** </p><p>Bryan Litz's Ballistic Book, also sold here at LRH, really is an eye opener. I do highly recommend it.</p><p>Exbal has simply let technology catch up and pass it. What it was it is not any more. It needs a major overhaul... Needs a practical way to use spin drift and coriolis effect corrections as well as allowing the user to use BC's based on G7.</p><p>If you read some of my posts on trying to help some folks that were using Exbal incorrectly you will find out I know the program very well. Many of you know I know LoadBase fairly well. I presently own more than 5 ballistic programs and have run more than a 1-1/2 dozen of them through out the years; it's just a decease I have. Bottom line, I'm not ignorant when it comes to ballistic programs and that's the reason I feel I help people by recommending what I have found to suit my needs and more likely any one else's needs since you can only use that which is applicable to your needs.</p><p>I kind of see Phorwath in the middle of all this evolution with his post about his rifle shooting right at 1000 yards; back then, not that long ago, you could not find programs with spin drift correction and coriolis effect corrections. Period.... Then it was blooming and phorwath, bigngreen and others, if I remember right, including my self, were very happy about it.</p><p>Finally, remember this, when you compare ballistic programs, always use the same values for the applications being compared. If you don't do that, your comparison is worth nothing! Just flat down worthless!</p><p></p><p>Load Base 3.0 won't let you down!</p><p></p><p>With a big friendly smile, <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> , Eaglet.</p></blockquote><p></p>
[QUOTE="Eaglet, post: 416913, member: 3756"] To All, Not too long ago, there were no ballistics programs available to civilians that would calculate spin drift and Coriolis; and just in a few months, all the sudden you find them in different flavors. Most programs were for G1 and even some would have the ability to convert to G7 and other G's though the BC's available were for G1. With the introduction of Brian Litz's book and his great contribution of BC values for G7 it marked a place in history of ballistics. G1's BC's are velocity dependent and that's the reason that Sierra bullets gives banded BC's. Meaning different BC's for different ranges of velocities, still is not as accurate as using G7 BC's which are not velocity dependent and will provide much more accurate predictions for long ranges specially those approaching subsonic velocities. G7 will give you more accurate velocity predictions which is extremely important to mark your range limits to remain within supersonic bullet speeds. Any ballistic program today worth anything would have to give you the ability to use G7 BC's since it would just be the way to go if you're using any ballistic program with the exception of Load Base 3.0 which, I don't know how, will give you amazingly accurate values with either G1 or G7. ***Read on the link posted above*** Bryan Litz's Ballistic Book, also sold here at LRH, really is an eye opener. I do highly recommend it. Exbal has simply let technology catch up and pass it. What it was it is not any more. It needs a major overhaul... Needs a practical way to use spin drift and coriolis effect corrections as well as allowing the user to use BC's based on G7. If you read some of my posts on trying to help some folks that were using Exbal incorrectly you will find out I know the program very well. Many of you know I know LoadBase fairly well. I presently own more than 5 ballistic programs and have run more than a 1-1/2 dozen of them through out the years; it's just a decease I have. Bottom line, I'm not ignorant when it comes to ballistic programs and that's the reason I feel I help people by recommending what I have found to suit my needs and more likely any one else's needs since you can only use that which is applicable to your needs. I kind of see Phorwath in the middle of all this evolution with his post about his rifle shooting right at 1000 yards; back then, not that long ago, you could not find programs with spin drift correction and coriolis effect corrections. Period.... Then it was blooming and phorwath, bigngreen and others, if I remember right, including my self, were very happy about it. Finally, remember this, when you compare ballistic programs, always use the same values for the applications being compared. If you don't do that, your comparison is worth nothing! Just flat down worthless! Load Base 3.0 won't let you down! With a big friendly smile, :D , Eaglet. [/QUOTE]
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