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The Range
Ammo & Reloading
W231 and 357 load data discrepancy
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<blockquote data-quote="Rod Snell" data-source="post: 3203901" data-attributes="member: 796"><p>I've used 231 in .38 and .357 for 50 years, and have the old Winchester loading books.</p><p>Obviously, you can't get magnum MV with 231/HP38 (same powder) in a .357. And with a lead bullet in a .357, it leads horribly long before you get to pressure limits. Comparing 231 and 296, I can load both to max pressure limits with a 158gr hard cast lead, and the 231 will lead the barrel severely, while the same bullet going faster over 296 won't. Probably something to do with the different pressure curves.</p><p>So if using 231 with 158gr lead bullets in a .357 I always stop around 5.5gr to avoid the mess. With 125gr JHP, I load up to 8gr.</p></blockquote><p></p>
[QUOTE="Rod Snell, post: 3203901, member: 796"] I've used 231 in .38 and .357 for 50 years, and have the old Winchester loading books. Obviously, you can't get magnum MV with 231/HP38 (same powder) in a .357. And with a lead bullet in a .357, it leads horribly long before you get to pressure limits. Comparing 231 and 296, I can load both to max pressure limits with a 158gr hard cast lead, and the 231 will lead the barrel severely, while the same bullet going faster over 296 won't. Probably something to do with the different pressure curves. So if using 231 with 158gr lead bullets in a .357 I always stop around 5.5gr to avoid the mess. With 125gr JHP, I load up to 8gr. [/QUOTE]
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W231 and 357 load data discrepancy
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