With squirrels it's all about shot placement. Domed or hollow points should work fine. It only takes 4ft-lbs on impact to kill a squirrel. The Predators would probably work best on them, but if hit in the head it doesn't matter what pellet you use. Even flat/wadcutter pellets would work. I 've taken a few with Crosman flat & pointed pellets using my 5.7-5.8fpe 760 pumper 25+yrs ago (~15yds) and that was with all 3: neck, head, and upper chest shots. Squirrels are tough. They 'll fight and do the death dance but they won't run away, especially if hit in the head or neck. If one is hanging on too long, just follow up with another shot to end it.
Hey Brent, did you measure the expansion? I 'm curious.
Check out these .22 Crow Magnums I recovered. 0.31" diameter! But these are heavier (18.2gr) so I would expect them to be a little wider than the Predators since they have more mass. But I liked the fact that even the skirt was flattened with the CM's! I got a box of Predators that I haven't opened because this Condor is just too powerful to shoot them sub-sonic. I would like to keep the velocity around 1,000fps or less, but even at the lowest setting JSB Exact 15.9gr were going over 1,100fps and the shroud wasn't working too well consealing the sonic boom. So I haven't tried the Predators yet. I 'll start using them on some of my other .22's. That's an impressive expansion so this tells me they are true HP's, not like the Premier HP's (CPHP's).. but the CPHP is still a very good pellet and hits hard and is accurate in most guns.