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Long Range Hunting & Shooting
Cold temp affecting terminal performance of plastic tipped bullets
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<blockquote data-quote="WalksLikeADeer" data-source="post: 1365996" data-attributes="member: 94603"><p>There are a lot of good points brought up to as why the bullets are less effective at extreme low temperatures and I would like to suggest that it is combination of all the factors.</p><p></p><p>Velocity is reduced by colder temperatures(even with extreme powders), the air is denser causing more drag, the animals cold skin may be more resistent, etc.</p><p></p><p>In addition, the bullet is starting out -20 degress and I would reason that it would take longer to heat up than say a bullet at 70 degrees, especially at the core, given the short duration of flight, thus making it less viscous at impact.</p><p></p><p>I would be interested in seeing ACTUAL velocity numbers(not just balistic therory) at say 200 yds between -20 and 50-70 degrees F.</p></blockquote><p></p>
[QUOTE="WalksLikeADeer, post: 1365996, member: 94603"] There are a lot of good points brought up to as why the bullets are less effective at extreme low temperatures and I would like to suggest that it is combination of all the factors. Velocity is reduced by colder temperatures(even with extreme powders), the air is denser causing more drag, the animals cold skin may be more resistent, etc. In addition, the bullet is starting out -20 degress and I would reason that it would take longer to heat up than say a bullet at 70 degrees, especially at the core, given the short duration of flight, thus making it less viscous at impact. I would be interested in seeing ACTUAL velocity numbers(not just balistic therory) at say 200 yds between -20 and 50-70 degrees F. [/QUOTE]
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Cold temp affecting terminal performance of plastic tipped bullets
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