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Rifles, Reloading, Optics, Equipment
Equipment Discussions
6.5WSM
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<blockquote data-quote="65WSM" data-source="post: 872736" data-attributes="member: 9551"><p>I have trouble attaching this as an attachment but this is a quickload output. Quickload shows the time in the barrel and muzzle pressure which will help you select powders. The chosen parameters in this run are the Maximum Pressure of 61400 psi with 130 gr Accubond bullets. A friend has the program on his computer and I do not have a 140 gr output handy. Stay tuned I will get one for you. The 6.5 WSM cartridge will achieve the highest velocities with a burn rate just below what the 50 caliber benchrest cartridges are using. VihtaVuori's burn rate chart is the only one that shows the relative closeness or distance between powders from different sources. </p><p></p><p>Please note that MagPro is a ball powder manufactured by St Marks in Florida. These ball powders are the reason that Bruce Hodgdon sought out a better supplier (ADI which is owned by the French but is in Australia). The St Marks ball powders are known for their temperature sensitivity. That is why the necessity of the "Hodgdon Extreme" line of powders. The US Army also sourced Bufors produced powder for their .308 Sniper ammo. The testing was done by a friend, a Physics professor, Dennis Skailand. They shot in the Winter near Nome and in the Canal Zone of Panama.</p></blockquote><p></p>
[QUOTE="65WSM, post: 872736, member: 9551"] I have trouble attaching this as an attachment but this is a quickload output. Quickload shows the time in the barrel and muzzle pressure which will help you select powders. The chosen parameters in this run are the Maximum Pressure of 61400 psi with 130 gr Accubond bullets. A friend has the program on his computer and I do not have a 140 gr output handy. Stay tuned I will get one for you. The 6.5 WSM cartridge will achieve the highest velocities with a burn rate just below what the 50 caliber benchrest cartridges are using. VihtaVuori's burn rate chart is the only one that shows the relative closeness or distance between powders from different sources. Please note that MagPro is a ball powder manufactured by St Marks in Florida. These ball powders are the reason that Bruce Hodgdon sought out a better supplier (ADI which is owned by the French but is in Australia). The St Marks ball powders are known for their temperature sensitivity. That is why the necessity of the "Hodgdon Extreme" line of powders. The US Army also sourced Bufors produced powder for their .308 Sniper ammo. The testing was done by a friend, a Physics professor, Dennis Skailand. They shot in the Winter near Nome and in the Canal Zone of Panama. [/QUOTE]
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6.5WSM
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