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Sport Pistol temperature insensitivity


BryceA
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Now that it's winter here in the northern hemisphere I took the opportunity to chrono some of my loads again to check the temp sensitivity. I am normally running 135 TC blue bullets at 3.4 gr Sport Pistol. With the same exact gun, in the summer (~85 F) I was getting 996 FPS whereas at ~32F I'm now getting 979 FPS, for a drop of 17 FPS. I feel pretty good about those results considering it's about the same as my max spread for a series, but was wondering what I should be expecting. I know Sport Pistol is said to be temp stable, what would be expected results from some of the more sensitive powders?

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I had similar results with Sport Pistol under 135 gr.  It dropped a little at lower temperatures, but not much. 

The equivalent load with Titegroup would drop about 4 PF at lower temperatures.  

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