Wind in Wyoming caused me to switch from 100 g. bullets in my 257 Roberts to 115 g. bullets simply because the lighter bullets drift more in the wind.
Wind in Wyoming during antelope season is almost a given, and after getting really flummoxed by the wind a couple of times, I changed to heavier bullets. (The 100 grain bullets were chronographed at 3200 fps and drift was still a problem.)
"It is wise, though, to remember above all else: rifle, caliber, scope, and even bullets notwithstanding, the most important feature of successful big game hunting is to put that bullet in the correct place, the first time!" John Jobson
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