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Rifles, Reloading, Optics, Equipment
Gunsmithing
?To nut or not to nut?
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<blockquote data-quote="Trickymissfit" data-source="post: 426505" data-attributes="member: 25383"><p>well I guess your not the only guy with an ME sheepskin. Get your Applied Mechanics text book out a read it. Then draw yourself a sketch of the inner workings. Fire a round and visualize what's happening as the powder starts to burn and the bullet starts to engage the rifeling. Now with the data gleaned from the book start to plug in the vectors of force (should be a minimum of six vectors of force acting on the barreled action). You'll see it right away. I took it further a pluged it all in a mechanical program that makes the parts work as if they were being used.</p><p> </p><p> The bolt! Savage uses a floating bolt head that aligns itself with the base of the brass. It has a draw back, but not in alignment. When you remachine the bolt face to square it up with the bolt body, that's about all you've done. The seating surface is also in need of the samething as well. And is only as good as the remachining of the seating surface. Yet all this work is only a patch to fix a portion of the problem. If the bolt has clearence on it to move it has some error built into it (I know about the Borden bumps). The bolt on the average action does not lock up exactly the same everytime. Close maybe, but never perfect because there's some built in clearence. The bumps do help a lot I might add. What I don't like about the floating bolt is that there maybe a slight problem if your a bullet jammer like I am. But if your a guy who seats his bullets a couple thousandths off the lands you don't have a problem. The real problem with virtually all bolts is in lateral motion. It can be fixed to a great extent, but you'd best know exactly where your going. And we have not even talked about the lock time issues that all guns have to a certain extent, and how some of the remedies seem to create other problems</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 426505, member: 25383"] well I guess your not the only guy with an ME sheepskin. Get your Applied Mechanics text book out a read it. Then draw yourself a sketch of the inner workings. Fire a round and visualize what's happening as the powder starts to burn and the bullet starts to engage the rifeling. Now with the data gleaned from the book start to plug in the vectors of force (should be a minimum of six vectors of force acting on the barreled action). You'll see it right away. I took it further a pluged it all in a mechanical program that makes the parts work as if they were being used. The bolt! Savage uses a floating bolt head that aligns itself with the base of the brass. It has a draw back, but not in alignment. When you remachine the bolt face to square it up with the bolt body, that's about all you've done. The seating surface is also in need of the samething as well. And is only as good as the remachining of the seating surface. Yet all this work is only a patch to fix a portion of the problem. If the bolt has clearence on it to move it has some error built into it (I know about the Borden bumps). The bolt on the average action does not lock up exactly the same everytime. Close maybe, but never perfect because there's some built in clearence. The bumps do help a lot I might add. What I don't like about the floating bolt is that there maybe a slight problem if your a bullet jammer like I am. But if your a guy who seats his bullets a couple thousandths off the lands you don't have a problem. The real problem with virtually all bolts is in lateral motion. It can be fixed to a great extent, but you'd best know exactly where your going. And we have not even talked about the lock time issues that all guns have to a certain extent, and how some of the remedies seem to create other problems gary [/QUOTE]
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?To nut or not to nut?
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