Formidilosus,

I don't think anybody on this thread had suggested light contour barrels shoot as well as heavy barrels. Instead the suggestion is that the phenomenon of groups "opening up" as light barrels warm is more due to the odds of shooting 3-shot rather than 5-shot groups, rather than the barrel diameter.

I notice you'te shooting at least 5-shot groups to prove a rifle/scope/load accuracy, rather than 3-shot.


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