We are having a "shooting contest" at our hog club in TN this weekend. I little money, some side bets and bragging rights involved. There are a few competition shooters in the bunch so I don't figure on winning but would like to at least look good. I will be using H335 in 223 with 50gr Z-Max and H 4350 with 140gr ELD M in 6.5 Creedmoor. Loaded in basement at a constant temperature and test fired back when it was in the high 80's or low 90's. Looks like a high of about 30 degrees this Saturday. Shooting 100 yards with the AR and out to 600 yards with the 6.5. What kind of effect can I expect if any. I am a novice....please be kind
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