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Long Range Hunting & Shooting
Load Developement ???
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<blockquote data-quote="trueblue" data-source="post: 340765" data-attributes="member: 10654"><p>Have you determined where you start to get pressure issues, and are loading on or off the lands ?</p><p>The first thing I do before load developement is seat on the lands, and go up in charge weight until I know where my top end isfor pressure. Then I know where to go from there.</p><p>Your 1" of verticle could be associated with less velocity. Do you have a chronograph to shoot over to see what your ES is?</p><p>I would try one powder at a time, and not clean the barrel once you start load work for at least 30-40 rounds. I would also look at Retumbo, as I am pretty sure it will be a better powder for you in the 7 RM. </p><p>Start out at 70, work you way up to 74gr.</p></blockquote><p></p>
[QUOTE="trueblue, post: 340765, member: 10654"] Have you determined where you start to get pressure issues, and are loading on or off the lands ? The first thing I do before load developement is seat on the lands, and go up in charge weight until I know where my top end isfor pressure. Then I know where to go from there. Your 1" of verticle could be associated with less velocity. Do you have a chronograph to shoot over to see what your ES is? I would try one powder at a time, and not clean the barrel once you start load work for at least 30-40 rounds. I would also look at Retumbo, as I am pretty sure it will be a better powder for you in the 7 RM. Start out at 70, work you way up to 74gr. [/QUOTE]
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