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Long Range Hunting & Shooting
Gain additional velocity by shooting prone ...
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<blockquote data-quote="Capt RB" data-source="post: 1522729" data-attributes="member: 85987"><p>The first movement is caused by the release of pressure on the bolt on a conventional firing pin/trigger sear/trigger. As Pressure builds it expands the vessel ie the brass to seal off then push the bullet. Then the torque induced by the bullet engaging the rifling will start the movement in a twisting motion arresting some of the rearward motion. But there are alot of things moving long before the bullet exits. The greatest amount of recoil is cause by the expanding gasses hitting the wall of atmosphere at the muzzle. This is the felt part and shows the most movement. Arresting that expanding gas with a device to divert and diffuse the amount that hits the wall at the end of the muzzle produces a reduction in reward movement.</p><p> Some things that correct some of the movement.</p><p>David Tubb's new DTR rifle uses a spring loaded bushing that holds the locking lugs to the rear against the surfaces. This helps keep the energy to drive the firing pin forward without the parasitic losses of a conventional system. Results in a faster lock time which equals a shot closer to the sight picture when the trigger was pulled.</p><p>Twisting left hand vs right hand for a right hand shooter will twist the rifle into the shooter vs away. With a rifle mounted against the shoulder and into a cheek the nut behind the trigger can reduce some of the torque induced movement. This would help in a miniscule way to use more of that enrgy being expended to move the bullet forward vs wasted energy in the recoil process.</p><p>Having a straighter case wall to grab the chamber walls will slow the rearward movement that a highly sloped case will. </p><p> These are not picking up hundreds of fps. They gain .25% here .5% there etc etc. Put them all together and you see gains that can change your DA a point or 2 for your particular rifle. Inside of 1000yds most shooters couldn't see it if you told them. For the ELR guys picking up some consistency and speed for free just for doing things to the nth degree is why they do it.</p><p> Minds are like parachutes they don't work when you don't open them. In some cases the results are quite catastrophic.</p></blockquote><p></p>
[QUOTE="Capt RB, post: 1522729, member: 85987"] The first movement is caused by the release of pressure on the bolt on a conventional firing pin/trigger sear/trigger. As Pressure builds it expands the vessel ie the brass to seal off then push the bullet. Then the torque induced by the bullet engaging the rifling will start the movement in a twisting motion arresting some of the rearward motion. But there are alot of things moving long before the bullet exits. The greatest amount of recoil is cause by the expanding gasses hitting the wall of atmosphere at the muzzle. This is the felt part and shows the most movement. Arresting that expanding gas with a device to divert and diffuse the amount that hits the wall at the end of the muzzle produces a reduction in reward movement. Some things that correct some of the movement. David Tubb's new DTR rifle uses a spring loaded bushing that holds the locking lugs to the rear against the surfaces. This helps keep the energy to drive the firing pin forward without the parasitic losses of a conventional system. Results in a faster lock time which equals a shot closer to the sight picture when the trigger was pulled. Twisting left hand vs right hand for a right hand shooter will twist the rifle into the shooter vs away. With a rifle mounted against the shoulder and into a cheek the nut behind the trigger can reduce some of the torque induced movement. This would help in a miniscule way to use more of that enrgy being expended to move the bullet forward vs wasted energy in the recoil process. Having a straighter case wall to grab the chamber walls will slow the rearward movement that a highly sloped case will. These are not picking up hundreds of fps. They gain .25% here .5% there etc etc. Put them all together and you see gains that can change your DA a point or 2 for your particular rifle. Inside of 1000yds most shooters couldn't see it if you told them. For the ELR guys picking up some consistency and speed for free just for doing things to the nth degree is why they do it. Minds are like parachutes they don't work when you don't open them. In some cases the results are quite catastrophic. [/QUOTE]
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