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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hot & Cold
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<blockquote data-quote="elkaholic" data-source="post: 450867" data-attributes="member: 13833"><p>Most POI changes due to extreme temp changes are either bedding problems or just as likely, pressure problems due to both the air, and powder temps. i.e. colder=less pressure and lower POI and hotter=more pressure and higher POI. Some powders are considerably worse for this than others. The answer is to make sure your rifle is well bedded (synthetics are USUALLY better than wood) for holding zero, mostly because of moisture content. Make sure you use a powder that is not as sensitive to temp changes and try to zero in conditions as close to hunting conditions as possible. Hope this helps......Rich</p></blockquote><p></p>
[QUOTE="elkaholic, post: 450867, member: 13833"] Most POI changes due to extreme temp changes are either bedding problems or just as likely, pressure problems due to both the air, and powder temps. i.e. colder=less pressure and lower POI and hotter=more pressure and higher POI. Some powders are considerably worse for this than others. The answer is to make sure your rifle is well bedded (synthetics are USUALLY better than wood) for holding zero, mostly because of moisture content. Make sure you use a powder that is not as sensitive to temp changes and try to zero in conditions as close to hunting conditions as possible. Hope this helps......Rich [/QUOTE]
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