A standard .300 WM with 1:10" will stabilize Berger 215s, 220s, and 230s. Not bad choices of heavy and high BC bullets for a standard twist.Really depends on barrel rate of twist. To really utilize the potential of even the old stand by cartridges with new heavy for caliber, high BC bullets, twist rate has to be correct. Generally, the 300 Win and 7mm RM won't stabilize heavys with "standard" twist rates.
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