Powder Temp Stability Chart

[hambam105]

World War One provided excellent information as to what Gunpowders of all kinds & quantities perform under adverse to ideal conditions.

Personally I'm not smart enough to figure it out for myself. Therefor I rely on those that are and listen to what they say and then
put their advise into practice.

[choprzrul]

Without using the same cartridge and test conditions, none of the numbers are comparable.
You could test the same cartridge with the same powder and different bullets and see dramatically different velocity variations.
What you really should be comparing is PERCENTAGE of variation.

You would do FAR better to compare loads in Quickload to see how much velocity variation you will get with temperature change.

You prompted me to go looking for how to change temps in QuickLoad....thank you sir

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