Ballistics are fine for sub 250m, which is the range i shoot 90+% of my varmints. Trajectory of the light bullets makes them point and shoot at those ranges. .255 is pretty good for 55gr. The nosler BT's are .267 but are short and hard to get close to lands without losing lots of bearing surface.
That said i have thought 6mm might be a better varmint calibre for me...
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