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<blockquote data-quote="angus-5024" data-source="post: 667305" data-attributes="member: 10306"><p>Numbers dont lie, without human error anyway. </p><p> </p><p>If you have a lead ball with a weight of 25 lbs, you also have an aluminum ball weighing 2 lbs; these balls are the exact same shape. They are dropped from a building at the same time. The balls will hit the ground at the same time, cant argue it. learned it in grade 6 or 7. pretty elementry. The same goes for if those same balls are launched horizontal, they will actually strike the ground at the exact same time as the balls that were dropped. The only thing that can change that is external forces (wind, air density...). Thats where haveing more velocity is a ++ because you can cover more ground in the time it takes to hit the ground</p><p> </p><p>With wind being the main external force we're concerned about, lets break it down. Mass helps to boost B.C, but its not B.C. </p><p> </p><p>The Two balls again. If a force of X is applied to the heavy ball, It will be accelerated in the direction of force. Acceleration= Force(net)/mass. </p><p>If the light ball has the same amount of force applied to it, useing the above formula, its obvious that it will be moved more.</p><p> </p><p>So we can saflely say that two objects of identical shape will fall at the same rate, but when a force is applied to them (wind), the lighter one will be affected more. </p><p> </p><p>The catch is that two bullets having the same b.c, one being heavier, will not have the same shape. The heavier bullet has the momentum advantage, being able to use that momentum to "plow" through its medium (air). However, that advantage could be offset by velocity for awhile, but eventually the heavier bullet will catch up. </p><p> </p><p>typically the heavier bullets will have less surface area, which is where I think that it make the biggest diffrence, becuase less force is applied to the bullet with less area. </p><p> </p><p>Velocity can offset that surface area however, because Time of Flight is less. That means less time for the bullet to be acted upon. It just get there faster. </p><p> </p><p> </p><p>All that being said, I think that the ballistics calulator doesnt lie.</p><p> </p><p>Drift 1k Drop 1k TOF 1k </p><p>300 grain .76 B.C- 4.5moa- 25.8moa- 1.36sec</p><p>mv 2750</p><p> </p><p>262 grain- .76 B.C- 3.8moa- 19.6moa- 1.193sec</p><p>mv 3100</p><p> </p><p>Numbers dont lie, but feild data cant be ignored either. Im gonna see if I can ring this out further with feild tests, but I suspect that at 1 k the ligher bullet wins.</p><p> </p><p>At ELR Im thinking that the heavies are gonna take the cake every time. </p><p> </p><p> </p><p> </p><p>I just want to thank both Broz and LTLR for there insight into this. Two very knowledgeable shooters who have more than theory behind them. Thanks for your time guys!</p></blockquote><p></p>
[QUOTE="angus-5024, post: 667305, member: 10306"] Numbers dont lie, without human error anyway. If you have a lead ball with a weight of 25 lbs, you also have an aluminum ball weighing 2 lbs; these balls are the exact same shape. They are dropped from a building at the same time. The balls will hit the ground at the same time, cant argue it. learned it in grade 6 or 7. pretty elementry. The same goes for if those same balls are launched horizontal, they will actually strike the ground at the exact same time as the balls that were dropped. The only thing that can change that is external forces (wind, air density...). Thats where haveing more velocity is a ++ because you can cover more ground in the time it takes to hit the ground With wind being the main external force we're concerned about, lets break it down. Mass helps to boost B.C, but its not B.C. The Two balls again. If a force of X is applied to the heavy ball, It will be accelerated in the direction of force. Acceleration= Force(net)/mass. If the light ball has the same amount of force applied to it, useing the above formula, its obvious that it will be moved more. So we can saflely say that two objects of identical shape will fall at the same rate, but when a force is applied to them (wind), the lighter one will be affected more. The catch is that two bullets having the same b.c, one being heavier, will not have the same shape. The heavier bullet has the momentum advantage, being able to use that momentum to "plow" through its medium (air). However, that advantage could be offset by velocity for awhile, but eventually the heavier bullet will catch up. typically the heavier bullets will have less surface area, which is where I think that it make the biggest diffrence, becuase less force is applied to the bullet with less area. Velocity can offset that surface area however, because Time of Flight is less. That means less time for the bullet to be acted upon. It just get there faster. All that being said, I think that the ballistics calulator doesnt lie. Drift 1k Drop 1k TOF 1k 300 grain .76 B.C- 4.5moa- 25.8moa- 1.36sec mv 2750 262 grain- .76 B.C- 3.8moa- 19.6moa- 1.193sec mv 3100 Numbers dont lie, but feild data cant be ignored either. Im gonna see if I can ring this out further with feild tests, but I suspect that at 1 k the ligher bullet wins. At ELR Im thinking that the heavies are gonna take the cake every time. I just want to thank both Broz and LTLR for there insight into this. Two very knowledgeable shooters who have more than theory behind them. Thanks for your time guys! [/QUOTE]
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