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257 Weatherby mag
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<blockquote data-quote="25WSM" data-source="post: 1899084" data-attributes="member: 38048"><p>I haven't tried the endurons in my 257s but I suspect your hunch is right on Calvin. I have found in the 257 that 7828ssc to not be very temp sensitive. It's easy to test for yourself. Just put a few in the freezer and let them rip. My test confirm that at below freezing my tune stays good and I lose only 35 fps from a 70 degree load. Rl22 is a great powder in the 257 but it loses over 100 fps in the same test. Found out the hard way about the rl22. If you get a good node going with the h1000 you will be in good shape.</p><p>Shep</p></blockquote><p></p>
[QUOTE="25WSM, post: 1899084, member: 38048"] I haven't tried the endurons in my 257s but I suspect your hunch is right on Calvin. I have found in the 257 that 7828ssc to not be very temp sensitive. It's easy to test for yourself. Just put a few in the freezer and let them rip. My test confirm that at below freezing my tune stays good and I lose only 35 fps from a 70 degree load. Rl22 is a great powder in the 257 but it loses over 100 fps in the same test. Found out the hard way about the rl22. If you get a good node going with the h1000 you will be in good shape. Shep [/QUOTE]
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