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Rifles, Reloading, Optics, Equipment
Reloading
7mm Ultra Mag...180 Berger...Need Data
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<blockquote data-quote="coyotezapper" data-source="post: 422312" data-attributes="member: 20438"><p>You can use the data for the 175 if you want stopping just short of max. Hodgdon is very conservative in their data. I very rarely get the same velocities with what they list in their data. Hodgdon does list pressures and pressure equals velocity. I load to their velocity/pressures and ignore their max charge recommendations. I have never had a problem doing it this way. You do need a chronograph though. US 869 is a ball powder so you will see pressure signs sooner than you would with stick powder so once you get past max charges go in small .2-.3 grain increments. US 869 is perfect for the 7mm rum.</p></blockquote><p></p>
[QUOTE="coyotezapper, post: 422312, member: 20438"] You can use the data for the 175 if you want stopping just short of max. Hodgdon is very conservative in their data. I very rarely get the same velocities with what they list in their data. Hodgdon does list pressures and pressure equals velocity. I load to their velocity/pressures and ignore their max charge recommendations. I have never had a problem doing it this way. You do need a chronograph though. US 869 is a ball powder so you will see pressure signs sooner than you would with stick powder so once you get past max charges go in small .2-.3 grain increments. US 869 is perfect for the 7mm rum. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7mm Ultra Mag...180 Berger...Need Data
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