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Rifles, Reloading, Optics, Equipment
Reloading
7mag Magic!
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<blockquote data-quote="Muddyboots" data-source="post: 2789459" data-attributes="member: 63925"><p>IMO trusting anybody's load data assuming its pressure tested thus safe is recipe for failure as well unless you personally recognize pressure signs and evaluate your own pressure results on brass and rifle. Good example of perplexing load data for same bullet and same powder is Nosler .243 Win 55 BT with H380. They show MAX load at 47.5 gr using H380 @ 3951fps. Curiously, Hodgdon shows MAX load of 51.0 grains of H380 for same bullet. Hodgdon gets 4010 fps with 3.5 grains more powder to get only 59 more fps? Both using 24" barrels. Both reputable for their load data. Their load numbers do not compare in any reasonable way. According to Nosler you might be way over their load data and at risk if you use Hodgdon's data. So who is more reliable? Bullet manufacturer? Powder manufacturer? Don't they both pressure test? The difference in brass and primers is not going to be 3.5 grains with same powder and bullet. As a reloader, you must learn to read pressure no matter where you are in the load manual data tree. </p><p></p><p>There is a lot more conundrum data out there so assuming data is "pressure tested" so its safe doesn't float my boat at all.</p><p></p><p>[ATTACH=full]453000[/ATTACH]</p><p>[ATTACH=full]453001[/ATTACH]</p></blockquote><p></p>
[QUOTE="Muddyboots, post: 2789459, member: 63925"] IMO trusting anybody's load data assuming its pressure tested thus safe is recipe for failure as well unless you personally recognize pressure signs and evaluate your own pressure results on brass and rifle. Good example of perplexing load data for same bullet and same powder is Nosler .243 Win 55 BT with H380. They show MAX load at 47.5 gr using H380 @ 3951fps. Curiously, Hodgdon shows MAX load of 51.0 grains of H380 for same bullet. Hodgdon gets 4010 fps with 3.5 grains more powder to get only 59 more fps? Both using 24" barrels. Both reputable for their load data. Their load numbers do not compare in any reasonable way. According to Nosler you might be way over their load data and at risk if you use Hodgdon's data. So who is more reliable? Bullet manufacturer? Powder manufacturer? Don't they both pressure test? The difference in brass and primers is not going to be 3.5 grains with same powder and bullet. As a reloader, you must learn to read pressure no matter where you are in the load manual data tree. There is a lot more conundrum data out there so assuming data is "pressure tested" so its safe doesn't float my boat at all. [ATTACH type="full" alt="51863E64-C817-46B8-8417-D52606D08681.jpeg"]453000[/ATTACH] [ATTACH type="full" alt="71EB8839-9EAE-4F52-8ACF-89043C874777.jpeg"]453001[/ATTACH] [/QUOTE]
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