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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
QuickLOAD way off from reality. Solutions?
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<blockquote data-quote="Seabeeken" data-source="post: 2441600" data-attributes="member: 68015"><p>QL and GRT are only predictions because every rifle is different. There are still many variables and powder burns differently in different cases. The powder model needs to be fined tuned for each rifle. Initial/start pressure is another point. Barnes for example needs a start pressure in the 6500 psi area and some Hammers are less than standard bullets. The only way to know for sure what a load is doing is to have a pressure trace system to measure pressure. Typical pressure signs are a bit dangerous since by the time they appear in the brass the load is somewhere in the 73,000 psi area. If you doubt me, try it, work up a load to pressure signs and then run the data in QL. I learned this while working with many wildcats</p></blockquote><p></p>
[QUOTE="Seabeeken, post: 2441600, member: 68015"] QL and GRT are only predictions because every rifle is different. There are still many variables and powder burns differently in different cases. The powder model needs to be fined tuned for each rifle. Initial/start pressure is another point. Barnes for example needs a start pressure in the 6500 psi area and some Hammers are less than standard bullets. The only way to know for sure what a load is doing is to have a pressure trace system to measure pressure. Typical pressure signs are a bit dangerous since by the time they appear in the brass the load is somewhere in the 73,000 psi area. If you doubt me, try it, work up a load to pressure signs and then run the data in QL. I learned this while working with many wildcats [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
QuickLOAD way off from reality. Solutions?
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