I know there has been lots of discussion on how much temperature changes can affect different powders, and it seems like the only ones that can handle it relatively well are the Hodgdon "Extreme" line (feel free to correct me if there are others)
Now I'm assuming this change has more to do with the actual temperature of the case and powder than ambient air (considering ambient air really doesn't have anything to do with the reaction for the most part). With that being said, has anyone ever tried a single sitting test to see how different powders react to different temps? Load up 3 sets of each load with as many different powders as you have, keep one set in a cooler or a refrigerator (down to maybe 0F to approximate winter hunting), one at ambient temp, and then one in direct sunlight, maybe even in a controllable toaster oven or something up to 100+F to approximate summer hunting/hunting somewhere warm.
Once you stabilize the temperature of the rounds remove them one by one and shoot them through a chrono to measure the difference in velocities?
Or even to make is a little more simple, if you know you're developing a hunting load, and it's always between 0F and 20F for your hunting season, develop the load and then test your final work up while holding the round at that temp before test firing.
Will the gun being a different temperature skew the results too much?
Does this seem like a reasonable way to approximate the changes from temp?
Has this been done before and I just need to get better at looking?
Now I'm assuming this change has more to do with the actual temperature of the case and powder than ambient air (considering ambient air really doesn't have anything to do with the reaction for the most part). With that being said, has anyone ever tried a single sitting test to see how different powders react to different temps? Load up 3 sets of each load with as many different powders as you have, keep one set in a cooler or a refrigerator (down to maybe 0F to approximate winter hunting), one at ambient temp, and then one in direct sunlight, maybe even in a controllable toaster oven or something up to 100+F to approximate summer hunting/hunting somewhere warm.
Once you stabilize the temperature of the rounds remove them one by one and shoot them through a chrono to measure the difference in velocities?
Or even to make is a little more simple, if you know you're developing a hunting load, and it's always between 0F and 20F for your hunting season, develop the load and then test your final work up while holding the round at that temp before test firing.
Will the gun being a different temperature skew the results too much?
Does this seem like a reasonable way to approximate the changes from temp?
Has this been done before and I just need to get better at looking?
Comment