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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel Length
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<blockquote data-quote="FearNoWind" data-source="post: 946394" data-attributes="member: 50867"><p>Tell him that it's all relative. Optimum barrel length would simply be the length at which the bullet leaves the muzzle at precisely the same moment as all of the energy applied during the firing cycle has reached it's peak. A long barrel will tend to drag down the bullet's velocity when the loads energy peaks too early. A short barrel will tend to waste energy when the bullet leaves the muzzle before the load energy has reached its peak.</p><p>Then there's the issue of how MV affects trajectory given the energy of a given load, the shape/weight of the bullet, etc.</p><p>Shoot a fifty caliber ball out of a muzzle loader with a 42" barrel and compare it's accuracy with a fifty caliber bullet fired out of a 29" barreled 50BMG</p><p>I had a relative who, many years ago, believed that a four wheel vehicle with smaller wheels in front will roll faster than a vehicle with four wheels of the same size. When I told him that extending his theory to infinity would result in a vehicle moving along a level plane without applied energy, the ultimate perpetual motion machine, he got kinda quiet.</p></blockquote><p></p>
[QUOTE="FearNoWind, post: 946394, member: 50867"] Tell him that it's all relative. Optimum barrel length would simply be the length at which the bullet leaves the muzzle at precisely the same moment as all of the energy applied during the firing cycle has reached it's peak. A long barrel will tend to drag down the bullet's velocity when the loads energy peaks too early. A short barrel will tend to waste energy when the bullet leaves the muzzle before the load energy has reached its peak. Then there's the issue of how MV affects trajectory given the energy of a given load, the shape/weight of the bullet, etc. Shoot a fifty caliber ball out of a muzzle loader with a 42" barrel and compare it's accuracy with a fifty caliber bullet fired out of a 29" barreled 50BMG I had a relative who, many years ago, believed that a four wheel vehicle with smaller wheels in front will roll faster than a vehicle with four wheels of the same size. When I told him that extending his theory to infinity would result in a vehicle moving along a level plane without applied energy, the ultimate perpetual motion machine, he got kinda quiet. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel Length
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