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Rifles, Reloading, Optics, Equipment
Reloading
Quickload help needed
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<blockquote data-quote="Hawk in WY" data-source="post: 2449887" data-attributes="member: 70947"><p>I don't disagree with this, but I'm not sure how to do that. I have been adjusting the burn rate because I know powder lot burn rates can vary as much as 10% lot to lot. I'm not adjusting so much lot to lot (although I certainly do that when changing lots) but I believe my adjustment is from the burn rate of the lot I am using to whatever is assumed in QuickLOAD. I would appreciate some education if this is not the best way to do this. Unfortunately, the QuickLOAD user manual is useless.</p><p></p><p>Edited to add: I see where the shot start initiation pressure comes from. Hover over the box and there it is. I learned something today. Not sure where weighing factor comes from.</p><p></p><p>I too have noticed significantly higher velocities versus predictions following the last update to the point where I no longer trust the pressure estimates until I have run loads over the chronograph. I seem to remember the original developer of QuickLOAD had health issues or may even have died. I wonder if whoever is doing the updates now is using different sources for the powder burn rate assumptions.</p><p></p><p>Edited to add: I am shooting all-copper bullets and not adjusting shot start initiation pressure. That may well be the source of the higher-than-predicted velocities. Thank you Seabeeken for the education.</p><p></p><p>I always thought the ability to update powder burn rate assumptions based on actual velocities reported by users in Gordon's Reloading Tool would be a major advantage. Unfortunately, Gordon is no longer with us, and actual velocities are no longer being input into the model.</p></blockquote><p></p>
[QUOTE="Hawk in WY, post: 2449887, member: 70947"] I don't disagree with this, but I'm not sure how to do that. I have been adjusting the burn rate because I know powder lot burn rates can vary as much as 10% lot to lot. I'm not adjusting so much lot to lot (although I certainly do that when changing lots) but I believe my adjustment is from the burn rate of the lot I am using to whatever is assumed in QuickLOAD. I would appreciate some education if this is not the best way to do this. Unfortunately, the QuickLOAD user manual is useless. Edited to add: I see where the shot start initiation pressure comes from. Hover over the box and there it is. I learned something today. Not sure where weighing factor comes from. I too have noticed significantly higher velocities versus predictions following the last update to the point where I no longer trust the pressure estimates until I have run loads over the chronograph. I seem to remember the original developer of QuickLOAD had health issues or may even have died. I wonder if whoever is doing the updates now is using different sources for the powder burn rate assumptions. Edited to add: I am shooting all-copper bullets and not adjusting shot start initiation pressure. That may well be the source of the higher-than-predicted velocities. Thank you Seabeeken for the education. I always thought the ability to update powder burn rate assumptions based on actual velocities reported by users in Gordon's Reloading Tool would be a major advantage. Unfortunately, Gordon is no longer with us, and actual velocities are no longer being input into the model. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Quickload help needed
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