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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning tool & Advice please
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<blockquote data-quote="Bart B" data-source="post: 342780" data-attributes="member: 5302"><p>What you want to do is fine.</p><p></p><p>Many folks use standard SAAMI chambers with .344 to .345 inch chamber necks and shoot thin walled match cases with .012 inch or less neck wall thickness. Their test groups are often better than benchrest records with super tight necked chambers.</p><p></p><p>Note that for rimless bottleneck cases, the bullet and case neck are aligned to the bore by the case shoulder mating with the chamber shoulder very hard when the firing pin strikes the primer. It doesn't matter how much neck clearance there is. As long as the case neck's axis is aligned with the case body axis, the bullet will be very well aligned with the bore when the round fires. If the case neck's a bit misaligned with the case, the bullet's going to be misaligned with the bore when its fired.</p><p></p><p>Same thing happens with either full length or neck only sized cases; they both fit the chamber virtually the same when fired. Full length sized ones are often times more centered at their shoulders when chambered than neck only sized ones.</p></blockquote><p></p>
[QUOTE="Bart B, post: 342780, member: 5302"] What you want to do is fine. Many folks use standard SAAMI chambers with .344 to .345 inch chamber necks and shoot thin walled match cases with .012 inch or less neck wall thickness. Their test groups are often better than benchrest records with super tight necked chambers. Note that for rimless bottleneck cases, the bullet and case neck are aligned to the bore by the case shoulder mating with the chamber shoulder very hard when the firing pin strikes the primer. It doesn't matter how much neck clearance there is. As long as the case neck's axis is aligned with the case body axis, the bullet will be very well aligned with the bore when the round fires. If the case neck's a bit misaligned with the case, the bullet's going to be misaligned with the bore when its fired. Same thing happens with either full length or neck only sized cases; they both fit the chamber virtually the same when fired. Full length sized ones are often times more centered at their shoulders when chambered than neck only sized ones. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning tool & Advice please
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