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Rifles, Reloading, Optics, Equipment
Reloading
Should I be worried about my neck clearance?
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<blockquote data-quote="David Emerson" data-source="post: 1978904" data-attributes="member: 112579"><p>As long as it chambers easy all is well. I order reamers for .002 clearance below 30 caliber. 003 for 30 and 338 and .004 for bigger than that. Think of the neck as a rudder. A tighter fit keeps the bullet more in line with the bore. For accuracy sloppy is not good. I have read some people say you need .004 for a good bullet release. Horse pucky. How much pressure does it take to expand the neck? I don,t know but not much. I have a 7mm stw here . Borden, bartlein, leica scope. When I first shot it I was using new winchester cases. Not accurate at all. Miked a loaded round and it was .311. Was not working well in a .318 chamber. I then necked down some 8mm mag brass. It measured .316. Then it woke up.</p></blockquote><p></p>
[QUOTE="David Emerson, post: 1978904, member: 112579"] As long as it chambers easy all is well. I order reamers for .002 clearance below 30 caliber. 003 for 30 and 338 and .004 for bigger than that. Think of the neck as a rudder. A tighter fit keeps the bullet more in line with the bore. For accuracy sloppy is not good. I have read some people say you need .004 for a good bullet release. Horse pucky. How much pressure does it take to expand the neck? I don,t know but not much. I have a 7mm stw here . Borden, bartlein, leica scope. When I first shot it I was using new winchester cases. Not accurate at all. Miked a loaded round and it was .311. Was not working well in a .318 chamber. I then necked down some 8mm mag brass. It measured .316. Then it woke up. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Should I be worried about my neck clearance?
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