You make me Giggle. This is within 300fps of 460S&W's fastest load!!!You said "big iron" not "big lead", so my Stainless Blackhawk 327 Fed Mag, built on the Super Blackhawk frame will qualify as big iron because it just has small holes through it!
Of course if sheer power is your quest, full snort 327 Federal Mag loads are fire breathing and ground shaking! I guess you would have to call if "the Mouse that Roared!!"
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