OTHER THAN SOME UP CLOSE PENETRATION TESTING AT A LINEBAUGH SHOOT, I HAVE NOT DONE SUCH TESTING, BUT, IF I WERE TOO I WOULD DO SOME UP CLOSE (A FEW FEET AWAY) AND THEN MAYBE SOME AT A LONGER DISTANCE, e.g. 50 - 100 YARDS. IN A RECENT POST JDK HAD A REFERENCE TO A bullet testing LINK THAT YOU MIGHT FIND INTERESTING.

"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.