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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Do cartridge case dimensions affect recoil?
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<blockquote data-quote="Akmtnrunner" data-source="post: 1217888" data-attributes="member: 92526"><p>I know this is an old thread but I found it as I was google searching this topic. I was confused but now I've come to realise another way to think through it that may help others.</p><p></p><p>I was having a hard time reconciling how the case dimensions do not affect recoil. As I thought through the entire recoil process, I could not get around how the pressure force is the force that causes the rifle to recoil backwards (besides the bullet-barrel forces, which are negligible and besides the point), yet the area that it acts upon to create force, is irrelevant?</p><p></p><p>Until it occurred to me to consider portions of the case that pressure acts upon to create <em>forward</em> push like the taper and shoulder. As slight as their angles may be, the forward-area component will equal and cancel out the backward-area component that exceeds the caliber's area. In other words, as the case head increases size and does in fact receive more force acting rearward, the case's taper and shoulder must also increase in size and receive an equal amount of additional force acting forward. As long as the action is strong enough, nothing else feels any difference.</p><p></p><p>Now I feel better <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Akmtnrunner, post: 1217888, member: 92526"] I know this is an old thread but I found it as I was google searching this topic. I was confused but now I've come to realise another way to think through it that may help others. I was having a hard time reconciling how the case dimensions do not affect recoil. As I thought through the entire recoil process, I could not get around how the pressure force is the force that causes the rifle to recoil backwards (besides the bullet-barrel forces, which are negligible and besides the point), yet the area that it acts upon to create force, is irrelevant? Until it occurred to me to consider portions of the case that pressure acts upon to create [I]forward[/I] push like the taper and shoulder. As slight as their angles may be, the forward-area component will equal and cancel out the backward-area component that exceeds the caliber's area. In other words, as the case head increases size and does in fact receive more force acting rearward, the case's taper and shoulder must also increase in size and receive an equal amount of additional force acting forward. As long as the action is strong enough, nothing else feels any difference. Now I feel better :) [/QUOTE]
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Do cartridge case dimensions affect recoil?
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