Plastic bullets? No — they’re not plastic, but apparently that’s what more than a few people seem to think. Polycase Ammo has introduced some very different new bullets to the market, and suffice it to say my inbox blew up when these were announced. Partly, I assume, because there are some lofty claims made by the manufacturer, but moreso (I think) because I recently published a test of the Lehigh Defense Xtreme Penetrator bullet. For those who are familiar with that particular Philips-head-screwdriver-resembling projectile, these PolyCase ARX bullets bear enough resemblance that people wanted them tested now . . .