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Hunting
Long Range Hunting & Shooting
Effect of Bullet Spin on Terminal Performance
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<blockquote data-quote="crazyhorse" data-source="post: 1697121" data-attributes="member: 3056"><p>If energy transfer is a primary component of success then rotational speed (any speed for that matter) is definitely an important and contributing component. Aside from the bullet itself disrupting/moving tissue to create a pathway for itself, the tissue that is being moved has the same effect on the tissue its replacing and so on. This same component applies on an expanding bullet (albeit on a smaller scale) to the tissue being moved by the open/opening petals or fragmented pieces moving away from the projectile due to disruption and rotation are having the same effect.</p><p>Watching a slow motion video shows how the rotating striations in the gel block represent the transfer of rotational energy in addition to the impact of the projectile itself, and the faster it is rotating the more energy transferred.</p><p></p><p>Rotation is also a vital component of the little bullet mushrooms we have grown accustomed to seeing. Due to the extremely fast rotation of the bullet, when it hits something causing physical disruption the "petals" are moved outward due to the rotational energy being imparted as it moves through the medium.</p><p>Take a bullet like the Hammer hunter, if it were possible to shoot it into a gel block knuckle ball style it would likely just start to pile up on itself as it passes through the gel. The hollow point filling with gel would have some initial effect of moving the material outward but without the extreme rotation, not nearly enough to completely overcome the taper of the bullet required to achieve the desired BC.</p></blockquote><p></p>
[QUOTE="crazyhorse, post: 1697121, member: 3056"] If energy transfer is a primary component of success then rotational speed (any speed for that matter) is definitely an important and contributing component. Aside from the bullet itself disrupting/moving tissue to create a pathway for itself, the tissue that is being moved has the same effect on the tissue its replacing and so on. This same component applies on an expanding bullet (albeit on a smaller scale) to the tissue being moved by the open/opening petals or fragmented pieces moving away from the projectile due to disruption and rotation are having the same effect. Watching a slow motion video shows how the rotating striations in the gel block represent the transfer of rotational energy in addition to the impact of the projectile itself, and the faster it is rotating the more energy transferred. Rotation is also a vital component of the little bullet mushrooms we have grown accustomed to seeing. Due to the extremely fast rotation of the bullet, when it hits something causing physical disruption the "petals" are moved outward due to the rotational energy being imparted as it moves through the medium. Take a bullet like the Hammer hunter, if it were possible to shoot it into a gel block knuckle ball style it would likely just start to pile up on itself as it passes through the gel. The hollow point filling with gel would have some initial effect of moving the material outward but without the extreme rotation, not nearly enough to completely overcome the taper of the bullet required to achieve the desired BC. [/QUOTE]
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Effect of Bullet Spin on Terminal Performance
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