No, it is 250 - 300 grain sabots only in the Savage with smokeless. Actually, you can easily get a barrel hot enough to affect accuracy with Triple Se7en, Blackhorn 209, or other subs. None of it matters for "one shot, one kill" hunting.
Going bore size (".50 cal.") with bullets of the same weight is fail, as it gives you poor sectional density, penetration, and exterior ballistics compared to .45 caliber characteristics.
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