NOT EVEN REMOTELY CLOSE, IF YOU WANT BULLET INTEGRITY AND PENETRATION, GO MONOLITHIC, OR GO WITH A BARNES BUSTER, OR A PUNCH BULLET. IMHO, "HARD CAST", WHATEVER THAT MAY BE, IS MORE MYTH THAN REALITY.
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"ADAPT OR DIE". I USE ALL CAPS, NOT BECAUSE I AM YELLING, BUT BECAUSE IT IS AN OLD HABIT FROM MY ARMY DAYS, PLUS IT IS EASIER TO TYPE AND READ.