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Rifles, Reloading, Optics, Equipment
Reloading
Powders and MV change in cold temps
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<blockquote data-quote="rscott5028" data-source="post: 491003" data-attributes="member: 24624"><p>I compared some data a while back that I collected using RL22 and H4831sc in temps ranging from 98F to 32F. </p><p> </p><p>This was from my 7mm RM Sendero with an avg MV of around 2900 fps. </p><p> </p><p>As I recall, H4831sc varied by a total of about 40 fps across the entire temperature range as compared to 200 fps for RL22. </p><p> </p><p>This was not a scientific study. Among other things, the powder for each string did not come from the same Lot. But, it convinced me that it's not all marketing hype and points to one of the reasons that I beleive Hodgdon Extreme powders are so popular with competitive shooters. </p><p> </p><p>Having said that, there are many variables that affect your trajectory and I don't see why you wouldn't want to collect dope on your rifle under the conditions that you will hunt or compete in. </p><p> </p><p>-- richard</p></blockquote><p></p>
[QUOTE="rscott5028, post: 491003, member: 24624"] I compared some data a while back that I collected using RL22 and H4831sc in temps ranging from 98F to 32F. This was from my 7mm RM Sendero with an avg MV of around 2900 fps. As I recall, H4831sc varied by a total of about 40 fps across the entire temperature range as compared to 200 fps for RL22. This was not a scientific study. Among other things, the powder for each string did not come from the same Lot. But, it convinced me that it's not all marketing hype and points to one of the reasons that I beleive Hodgdon Extreme powders are so popular with competitive shooters. Having said that, there are many variables that affect your trajectory and I don't see why you wouldn't want to collect dope on your rifle under the conditions that you will hunt or compete in. -- richard [/QUOTE]
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Reloading
Powders and MV change in cold temps
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