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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Please help me with some ballistics calculations
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<blockquote data-quote="BallisticsGuy" data-source="post: 2267021" data-attributes="member: 96226"><p>While, yes, there's more volume in a larger bullet which means there's more surface area for wind to affect, that increased surface area is proportionally much smaller than the proportional increase in mass. Increasing mass means more wind velocity or more time is required to net the same deflection through momentum transfer. It's not hard to conceptualize but I guess it can be counterintuitive to the uninitiated.</p><p></p><p>This is why in the long range classes I teach, we spend a lot of time on understanding how bullets and air behave in each other's company. Any idiot can point a rifle and twist a knob. Knowing what knobs to twist is easy. Knowing exactly why you're twisting knobs, that's where the value lay.</p></blockquote><p></p>
[QUOTE="BallisticsGuy, post: 2267021, member: 96226"] While, yes, there's more volume in a larger bullet which means there's more surface area for wind to affect, that increased surface area is proportionally much smaller than the proportional increase in mass. Increasing mass means more wind velocity or more time is required to net the same deflection through momentum transfer. It's not hard to conceptualize but I guess it can be counterintuitive to the uninitiated. This is why in the long range classes I teach, we spend a lot of time on understanding how bullets and air behave in each other's company. Any idiot can point a rifle and twist a knob. Knowing what knobs to twist is easy. Knowing exactly why you're twisting knobs, that's where the value lay. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Please help me with some ballistics calculations
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