I've seen a variation of about maybe 50fps from summer to winter on my 7-08, 2750 to 2770 in summer, 2720 to 2740 when it's below 0degF, using CCI250 or F215 in it. Inside of 300 yds it makes no practical difference. Used it in the 22-250 also, but, I don't have the load data for it anymore, it killed a lot of stuff though. I think the only thing regarding temps, to maybe be concerned with using 760, is over 300yds, or if you are more concerned with match target shooting. Used it for 25yrs+ in the 7-08, can't see a good reason to change anything.
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