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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 PRC Barrel Length 24"vs 26" Velocity
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<blockquote data-quote="jpndave" data-source="post: 1910924" data-attributes="member: 5437"><p>I would watch those speeds and not push it up much further. Something has to be increasing the pressure in your rifle to get those speeds. If it isn't tracking with what is shown then don't keep pushing.</p><p></p><p>QuickLOAD isn't a guaranteed prediction of velocity and pressure. It can only be as accurate as what gets put in, conditions, etc. It's just another tool. If your speeds and charges are close to what it shows then pressure is likely close. If it's off like you are saying there can be a number of reasons. Chamber/brass/throat are different and higher pressure, powder batch more heat, hotter primers, lots of things can change. I haven't done a ton of work since I got the program but the rifle I am working with right now tracks pretty consistent to what it predicts. As you get more advanced with the program it can be adjusted to match your particular load. Any of these charts that are posted need to be started low and worked up. Even the published load data can vary just as much. Without knowing exactly what is different it's hard to guess why your combo is so much different.</p><p></p><p>Always start low and work up. Maybe I should change the steps on those runs to show what lower charges and pressures would yield speed wise with bigger steps.</p></blockquote><p></p>
[QUOTE="jpndave, post: 1910924, member: 5437"] I would watch those speeds and not push it up much further. Something has to be increasing the pressure in your rifle to get those speeds. If it isn't tracking with what is shown then don't keep pushing. QuickLOAD isn't a guaranteed prediction of velocity and pressure. It can only be as accurate as what gets put in, conditions, etc. It's just another tool. If your speeds and charges are close to what it shows then pressure is likely close. If it's off like you are saying there can be a number of reasons. Chamber/brass/throat are different and higher pressure, powder batch more heat, hotter primers, lots of things can change. I haven't done a ton of work since I got the program but the rifle I am working with right now tracks pretty consistent to what it predicts. As you get more advanced with the program it can be adjusted to match your particular load. Any of these charts that are posted need to be started low and worked up. Even the published load data can vary just as much. Without knowing exactly what is different it's hard to guess why your combo is so much different. Always start low and work up. Maybe I should change the steps on those runs to show what lower charges and pressures would yield speed wise with bigger steps. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 PRC Barrel Length 24"vs 26" Velocity
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