I have used Varget in my .280's and 25-06's for lots of years for around here (Wisconsin) and in the mountains in Wyoming and have never had or noticed any difference in bullet impact point at different temps. I've sighted in for Wyoming in September (50-60F) and shot muleys at 15F, usually long ranges, and have hit where it's supposed to.Same with later in november here at home. Also not competition guns so a little diff would'nt be noticed,at least not enough to concern me for deer.
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