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Rifles, Reloading, Optics, Equipment
Reloading
Video On Bump sizing cases.
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<blockquote data-quote="cajun" data-source="post: 1844078" data-attributes="member: 9772"><p>Let me just say this. How tight or how much tolerance you have between your chamber wall and your brass has very little to do with making a rifle shoot. What is important is that everything from your bolt to your chamber to your barrel is in perfect alignment and your ammo is straight. The bullet is going to engage the throat, rifling before it leaves the case neck. That is why all these competition guys are so anal about loading ammo with very little runout. The rat turd in a violin is of course an exaggeration. Their view is that they did not want the chamber or neck putting any undue stress on the case, bullet to put it out of alignment with the bore. Obviously .002 clearance is not a sloppy fit. And of course excessive resizing can cause headspace issues. Imho it's more important to have straight ammo and a straight chamber with zero runout to the bore axis.</p></blockquote><p></p>
[QUOTE="cajun, post: 1844078, member: 9772"] Let me just say this. How tight or how much tolerance you have between your chamber wall and your brass has very little to do with making a rifle shoot. What is important is that everything from your bolt to your chamber to your barrel is in perfect alignment and your ammo is straight. The bullet is going to engage the throat, rifling before it leaves the case neck. That is why all these competition guys are so anal about loading ammo with very little runout. The rat turd in a violin is of course an exaggeration. Their view is that they did not want the chamber or neck putting any undue stress on the case, bullet to put it out of alignment with the bore. Obviously .002 clearance is not a sloppy fit. And of course excessive resizing can cause headspace issues. Imho it’s more important to have straight ammo and a straight chamber with zero runout to the bore axis. [/QUOTE]
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Video On Bump sizing cases.
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