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Long Range Hunting & Shooting
Powder Temp.
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<blockquote data-quote="louis f" data-source="post: 1471613" data-attributes="member: 105931"><p>After some more load and range work, IMR 4831 powder seems to really pick up velocity after 70 degs. Trying to figure out the powder temp. and fps change for my shooters app. 1.5 degs. worked well from 54 deg powder temp up to about 70 degs. After that the fps of change per deg. was to great. An Antelope hunt this year in Wyoming the end of sept. Temps can be all over the board. I have shot H-4831 but don't get the accuracy. I have settled on just changing the velocity part of the app. as best I can, based on proven temp. and velocity readings.</p></blockquote><p></p>
[QUOTE="louis f, post: 1471613, member: 105931"] After some more load and range work, IMR 4831 powder seems to really pick up velocity after 70 degs. Trying to figure out the powder temp. and fps change for my shooters app. 1.5 degs. worked well from 54 deg powder temp up to about 70 degs. After that the fps of change per deg. was to great. An Antelope hunt this year in Wyoming the end of sept. Temps can be all over the board. I have shot H-4831 but don't get the accuracy. I have settled on just changing the velocity part of the app. as best I can, based on proven temp. and velocity readings. [/QUOTE]
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