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<blockquote data-quote="Scot E" data-source="post: 667298" data-attributes="member: 10832"><p>Good Thread. A couple things of interest to me.</p><p></p><p>A ballistic program will show the same drop and drift exactly with 2 bullets with the same BC but different weights. So the question is does real world data differ from this. In my experience the answer is no, at least not out to 900 yards or less and if it does differ it is very minor. I do, with some loads, begin to see some changes beyond 1000 but they are very small in most cases. But I don't shoot must past 1000-1200 yards and I do know that beyond those distances ballistic programs do need more tweaking to stay with real world results. </p><p></p><p>But this isn't really the issue in my mind because the real question should be when do heavier bullets shot at lower velocities overtake lighter bullets shot at higher velocities in drop and drift categories. </p><p></p><p>BC is important but you can't ignore velocity either because it is directly related to time of flight (TOF) which must affect bullet flight when dealing with the affects the wind and gravity. It is easy to prove with a ballistic program or shooting in the field that shooting bullets at faster velocities means less drop and drift. So the only question is where the line is drawn where shooting a faster bullet with a lower BC is overtaken by a bullet being shot slower but with a higher BC. </p><p></p><p>The point I would drive home is that the answer to what is the better method will be different for everyone. As you can see here in this thread some of the ELR guys find the heavy weights to be a really big advantage and rightfully so because at ELR a heavier higher BC bullet will always perform better. But for guys like me, and 95% of LR shooters, we need to do our home work and find out where a lighter but faster bullet breaks even with a heavier one. If we only shoot below that distance then at least for me it will be the lighter bullet I choose because I will get less recoil which gives most guys a bit more accuracy and will allow me to shoot a lighter carry weight gun a bit better. And in most cases I will get less drop and drift as well. Plus a higher velocity bullet is important in some circumstances when guys are using bullets that require a certain FPS to open up properly. In addition, for the hunting situations when a faster shot is needed it is nice, at least for me, to have the flattest shooting bullet I can get. Then I can quickly hold over with my reticle and still know I am going to dump him where he stands. Yes, for the longer range stuff I do take my time and make sure I have everything in line before making a shot. </p><p></p><p>To summarize I think there are merits to both concepts but one has to know their max range and test to that distance to find out what is best.</p><p></p><p>Scot E.</p></blockquote><p></p>
[QUOTE="Scot E, post: 667298, member: 10832"] Good Thread. A couple things of interest to me. A ballistic program will show the same drop and drift exactly with 2 bullets with the same BC but different weights. So the question is does real world data differ from this. In my experience the answer is no, at least not out to 900 yards or less and if it does differ it is very minor. I do, with some loads, begin to see some changes beyond 1000 but they are very small in most cases. But I don't shoot must past 1000-1200 yards and I do know that beyond those distances ballistic programs do need more tweaking to stay with real world results. But this isn't really the issue in my mind because the real question should be when do heavier bullets shot at lower velocities overtake lighter bullets shot at higher velocities in drop and drift categories. BC is important but you can't ignore velocity either because it is directly related to time of flight (TOF) which must affect bullet flight when dealing with the affects the wind and gravity. It is easy to prove with a ballistic program or shooting in the field that shooting bullets at faster velocities means less drop and drift. So the only question is where the line is drawn where shooting a faster bullet with a lower BC is overtaken by a bullet being shot slower but with a higher BC. The point I would drive home is that the answer to what is the better method will be different for everyone. As you can see here in this thread some of the ELR guys find the heavy weights to be a really big advantage and rightfully so because at ELR a heavier higher BC bullet will always perform better. But for guys like me, and 95% of LR shooters, we need to do our home work and find out where a lighter but faster bullet breaks even with a heavier one. If we only shoot below that distance then at least for me it will be the lighter bullet I choose because I will get less recoil which gives most guys a bit more accuracy and will allow me to shoot a lighter carry weight gun a bit better. And in most cases I will get less drop and drift as well. Plus a higher velocity bullet is important in some circumstances when guys are using bullets that require a certain FPS to open up properly. In addition, for the hunting situations when a faster shot is needed it is nice, at least for me, to have the flattest shooting bullet I can get. Then I can quickly hold over with my reticle and still know I am going to dump him where he stands. Yes, for the longer range stuff I do take my time and make sure I have everything in line before making a shot. To summarize I think there are merits to both concepts but one has to know their max range and test to that distance to find out what is best. Scot E. [/QUOTE]
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