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Hunting
Long Range Hunting & Shooting
recoil v accuracy
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<blockquote data-quote="lightwind" data-source="post: 522823" data-attributes="member: 30140"><p>Yes, having a bullet traveling down a barrel excludes it from being a closed system. You are correct.</p><p></p><p>As for the pressure being different on the bullet and the bolt face, the answer is no. It is a nearly isobaric system. What is happening is that the force on the rifle and the bullet is the same so they are moving proportionally to their mass. So, the bullet (and the hot gas) is accelerated faster by the ratio of the masses of the bullet (with combustion products) and the rifle.</p></blockquote><p></p>
[QUOTE="lightwind, post: 522823, member: 30140"] Yes, having a bullet traveling down a barrel excludes it from being a closed system. You are correct. As for the pressure being different on the bullet and the bolt face, the answer is no. It is a nearly isobaric system. What is happening is that the force on the rifle and the bullet is the same so they are moving proportionally to their mass. So, the bullet (and the hot gas) is accelerated faster by the ratio of the masses of the bullet (with combustion products) and the rifle. [/QUOTE]
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