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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
short necks.....what problem?
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<blockquote data-quote="Trickymissfit" data-source="post: 844585" data-attributes="member: 25383"><p>two ways to think about neck tension on a bullet.</p><p> </p><p>1. this would be that actual "bite" on the bullet from the neck ID to the bullet OD. Or often stated as the difference between the two in thousandths of an inch</p><p> </p><p>2. but the above is actually somewhat incorrect unless every neck length was the same. A longer neck with the same interference number will actually have more surface tension than a shorter one. I suppose that one could get by with a slight bit less tension on the bullet with a longer neck (be a good experiment). Your dealing with a little more square inches of area to actually grab the bullet. It's also a well known engineering fact that larger diameters require less tension (or interference) than smaller diameters of the same length. But also doubt we'd see a lot of this unless maybe comparing a .223 diameter to something like a .375 diameter.</p><p> gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 844585, member: 25383"] two ways to think about neck tension on a bullet. 1. this would be that actual "bite" on the bullet from the neck ID to the bullet OD. Or often stated as the difference between the two in thousandths of an inch 2. but the above is actually somewhat incorrect unless every neck length was the same. A longer neck with the same interference number will actually have more surface tension than a shorter one. I suppose that one could get by with a slight bit less tension on the bullet with a longer neck (be a good experiment). Your dealing with a little more square inches of area to actually grab the bullet. It's also a well known engineering fact that larger diameters require less tension (or interference) than smaller diameters of the same length. But also doubt we'd see a lot of this unless maybe comparing a .223 diameter to something like a .375 diameter. gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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short necks.....what problem?
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