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Rifles, Reloading, Optics, Equipment
Reloading
REVERSE TEMP SENSITIVITY????
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<blockquote data-quote="Fiftydriver" data-source="post: 2670147" data-attributes="member: 10"><p>May be many things but likely its the cold barrel steel. When steel is warm, it has more elastic properties which means when a bullet is driven down the bore, the barrel steel will actually move around the bullet as the bullet travels down the bore and then return back to its normal dimensions after the bullet passes. When temps are very cold, steel will still do the same thing but it can not do it as quickly as warm steel. As such, it cant GET OUT OF THE WAY, quickly enough and as such, it takes more pressure to push the bullet down the bore. This causes pressure spikes. A solid bullet will exaggerate this issue. As will a heavier barrel. that said some barrel makers actually warn not to shoot in extreme cold temps because of the risk of barrel rupture….</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 2670147, member: 10"] May be many things but likely its the cold barrel steel. When steel is warm, it has more elastic properties which means when a bullet is driven down the bore, the barrel steel will actually move around the bullet as the bullet travels down the bore and then return back to its normal dimensions after the bullet passes. When temps are very cold, steel will still do the same thing but it can not do it as quickly as warm steel. As such, it cant GET OUT OF THE WAY, quickly enough and as such, it takes more pressure to push the bullet down the bore. This causes pressure spikes. A solid bullet will exaggerate this issue. As will a heavier barrel. that said some barrel makers actually warn not to shoot in extreme cold temps because of the risk of barrel rupture…. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
REVERSE TEMP SENSITIVITY????
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