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Hunting
Extreme Long Range Hunting & Shooting (ELR)
enviromental corrections-what do you use?
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<blockquote data-quote="MMERSS" data-source="post: 877066" data-attributes="member: 63748"><p>One caveat to consider when using DA and this can be important, Temperature Regression. If your powder requires temperature regression your program needs the powder temperature as an input. For most programs there is no way around entering a temperature if you select the DA option.</p><p></p><p>How do you get around this? Minimize temperature regression by zeroing your rifle in average temperatures most likely to be encountered during your hunting and record average MV. Zeroing in average hunting temperature serves two fold.</p><p></p><p>1) You are minimizing the powder temperature pressure differences which cause changes to your average muzzle velocity. If you are using less temperature sensitive powders and zero your rifle in average hunting temperatures this will eleviate this issue. Additionally to help with this issue, if it is significantly colder outside than your zero temperature you can place your ammo in a pocket close to your chest, drop your Kestrell in with that pocket and monitor the temperature. If the powder temperature is too cold or too hot simple move to a pocket closer or farther away from a body warm zone.</p><p></p><p>2) Harmonics. Don't you want to know how your rifle and ammo combo responds to specific conditions? At times my rifle POI and POA will change significant enough with a severe temp change to cause unnecessary errors at extended ranges.</p></blockquote><p></p>
[QUOTE="MMERSS, post: 877066, member: 63748"] One caveat to consider when using DA and this can be important, Temperature Regression. If your powder requires temperature regression your program needs the powder temperature as an input. For most programs there is no way around entering a temperature if you select the DA option. How do you get around this? Minimize temperature regression by zeroing your rifle in average temperatures most likely to be encountered during your hunting and record average MV. Zeroing in average hunting temperature serves two fold. 1) You are minimizing the powder temperature pressure differences which cause changes to your average muzzle velocity. If you are using less temperature sensitive powders and zero your rifle in average hunting temperatures this will eleviate this issue. Additionally to help with this issue, if it is significantly colder outside than your zero temperature you can place your ammo in a pocket close to your chest, drop your Kestrell in with that pocket and monitor the temperature. If the powder temperature is too cold or too hot simple move to a pocket closer or farther away from a body warm zone. 2) Harmonics. Don't you want to know how your rifle and ammo combo responds to specific conditions? At times my rifle POI and POA will change significant enough with a severe temp change to cause unnecessary errors at extended ranges. [/QUOTE]
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Extreme Long Range Hunting & Shooting (ELR)
enviromental corrections-what do you use?
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