How typical is it for different grain bullets to impact differently in the horizontal plane? In several cases in my experience, well tuned loads with different bullets will have (small consistent groups) but 1.5" or more apart horizontally on the same day. Much less vertical dispersion was present. FWIW the rifles were a 30'06 shooting 180s vs 165s and a 6mm shooting 95s and 105s. There was little or no wind so that would not be responsible for the difference.

Thanks.

Last edited by tcp; 09/24/20. Reason: clarity
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