BryceA Posted January 3, 2020 Share Posted January 3, 2020 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? Link to comment Share on other sites More sharing options...
BJB Posted January 3, 2020 Share Posted January 3, 2020 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. Link to comment Share on other sites More sharing options...
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