Some of this stuff carrys over to center fire.I have seen temp, humidity change the way my Sporter varmint push feed 70,in .223 rem, same ammo out of same box and lot, shot in a less then 24 hr.Shot late one evening and was knocking the black dot, shots touching late, cool, dead calm , humidity in the low 80's, the next day I was so happy with the scope,gun ammo combo that we started shooting right after lunch at unused target dots on the same target, geeze what a surprise but it was 90+ temp AND humidity but no wind !!! We shot again very late in the day with mirror conditions of the previous evening and I got same targets as the evening before.
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