For hollowpoints, I prefer the semi-pointed varieties (Predator, Crosman Destroyer, ect). So far, the best results I have had have been with Beeman Terminators in .22. I wanted to fall in love with Predator Polymags, but all my rifles hate them like poison. 20 yard groupings look like shotgun blasts, so I'm hesitant to even try them for hunting. Terminators aren't the most accurate I've come across (3/4" at 20 yards), so that limits me somewhat to larger pests (coons, groundhogs, feral cats) and body shots. Gamo's Polymag clones (Red Fire/ Blue Flame) are a bad joke; most of the pellets come without the polymer tips, having fallen out during shipping. I want to try the Predator Metalmags though; maybe when the Terminators are all gone I'll give them a whirl.
And Yrrah- Nice Pictures! We can all debate groupings, velocity, and ballistic gelatin expansion tests until we are blue in the face, but nothing illustrates performance like some good wet work! I only wish the pellet that did the damage could have been recovered to examine the expansion, but that looks like a clean through-and-thrugh. Metaphorically speaking, of course. Interesting history on Polymags as well!