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Rifles, Reloading, Optics, Equipment
Reloading
Superformance, 165 TTSX for 300 WSM ???
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<blockquote data-quote="MagnumManiac" data-source="post: 2292179" data-attributes="member: 10755"><p>That is a very interesting piece of information. I have found almost a 10g difference in water weight between various Norma cases to other brands. The Norma case always held MORE water, not less.</p><p>When I was shooting a WSM, I only ever used re-formed Winchester (270WSM) cases necked down to .257" calibre.</p><p>This was back in 2001/2 and we had very dramatic pressure excursions with quite a few powders. Pressure tracked nicely then spiked unpredictably and caused all sorts of issues. If the load density wasn't perfect, the charge would not ignite properly and the cases would get dents in the shoulders and powder soot all the way down the case body, it wasn't sealing the chamber properly. Only 2 powders would perform normally, Win 780 and RE25.</p><p>This was the reason I bought a Pressure Trace II, it opened my eyes to a lot of things about internal ballistics….it cannot be predicted with any amount of certainty.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2292179, member: 10755"] That is a very interesting piece of information. I have found almost a 10g difference in water weight between various Norma cases to other brands. The Norma case always held MORE water, not less. When I was shooting a WSM, I only ever used re-formed Winchester (270WSM) cases necked down to .257” calibre. This was back in 2001/2 and we had very dramatic pressure excursions with quite a few powders. Pressure tracked nicely then spiked unpredictably and caused all sorts of issues. If the load density wasn’t perfect, the charge would not ignite properly and the cases would get dents in the shoulders and powder soot all the way down the case body, it wasn’t sealing the chamber properly. Only 2 powders would perform normally, Win 780 and RE25. This was the reason I bought a Pressure Trace II, it opened my eyes to a lot of things about internal ballistics….it cannot be predicted with any amount of certainty. Cheers. [/QUOTE]
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Reloading
Superformance, 165 TTSX for 300 WSM ???
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