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Rifles, Reloading, Optics, Equipment
Reloading
Pressure signs/chronographing
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<blockquote data-quote="overbore" data-source="post: 206039" data-attributes="member: 2981"><p><strong>Pressure and velocity</strong></p><p></p><p>Son, I suggest you have a look at how Hogdon Powder lists a max load. FYI, that is not maximum pressure nor is it max velocity; rather, it is Optimum Charge Weight. Pressure is NOT from one thing alone. for example, changing brands of cases changes volume. Going from a mild primer ( Russian and CCI 200 )to hotter primers will increase your pressures around 15%!! Using moly coated bullets will lower your pressures. Adding neck tension will increase velocities-- got the picture?? Until you grasp the variables, I respectfully suggest that you you adhere to published data then work up charges in 1% incriments until you get experience and knowledge in what you are doing and alway wear eye protection!! Cordially, Overbore</p></blockquote><p></p>
[QUOTE="overbore, post: 206039, member: 2981"] [b]Pressure and velocity[/b] Son, I suggest you have a look at how Hogdon Powder lists a max load. FYI, that is not maximum pressure nor is it max velocity; rather, it is Optimum Charge Weight. Pressure is NOT from one thing alone. for example, changing brands of cases changes volume. Going from a mild primer ( Russian and CCI 200 )to hotter primers will increase your pressures around 15%!! Using moly coated bullets will lower your pressures. Adding neck tension will increase velocities-- got the picture?? Until you grasp the variables, I respectfully suggest that you you adhere to published data then work up charges in 1% incriments until you get experience and knowledge in what you are doing and alway wear eye protection!! Cordially, Overbore [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Pressure signs/chronographing
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