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Rifles, Reloading, Optics, Equipment
Reloading
Load Development in Cold Temps
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<blockquote data-quote="Lefty7mmstw" data-source="post: 717367" data-attributes="member: 48043"><p>I will usually shoot a load in BOTH cold and hot weather before I'm sure it's worth taking afield. I like to see what my stuff is doing at zero (or roundabouts) because the accuracy isn't usually the same as hot weather. The barrel harmonics change a bunch from 0 to 100 degrees and I need to know I'm at useable accuracy at both ends <em>and</em> in between. A load that shoots well at 80 degrees but blows chunks at 10 degrees is useless. </p><p>As far as getting a load too hot pressure wise in hot weather when you develop in cold weather; don't shoot for the moon speed/pressure wise and use book data and you will be fine 99% of the time and only a bit warm the rest of the time. Adjust a bit if you are warm; you should have data for lighter charges from load developement. Build a bit of headroom into the load; it's only prudent. Get a big enough rifle to start with.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 717367, member: 48043"] I will usually shoot a load in BOTH cold and hot weather before I'm sure it's worth taking afield. I like to see what my stuff is doing at zero (or roundabouts) because the accuracy isn't usually the same as hot weather. The barrel harmonics change a bunch from 0 to 100 degrees and I need to know I'm at useable accuracy at both ends [I]and[/I] in between. A load that shoots well at 80 degrees but blows chunks at 10 degrees is useless. As far as getting a load too hot pressure wise in hot weather when you develop in cold weather; don't shoot for the moon speed/pressure wise and use book data and you will be fine 99% of the time and only a bit warm the rest of the time. Adjust a bit if you are warm; you should have data for lighter charges from load developement. Build a bit of headroom into the load; it's only prudent. Get a big enough rifle to start with. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Load Development in Cold Temps
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