I'm a fan of CCI .22 ammo, mostly because it tends to be reliable in my guns. I don't know offhand how a Velocitor would compare with a Stinger or, say, a Mini Mag in terms of self defense against perps.
Though I carry something much larger than a .22 caliber for concealed carry and self defense in general, I keep a Taurus PT-22 in the trunk of one of my vehicles with 200 rounds of CCI Mini Mag hollow points as sort of a bug-out secondary gun for wherever I might be if the SHTF. The gun is pretty reliable with this round.
Bottom line, reliability is (in my opinion) the most important factor. CCI seems to be one of those reliable .22 brands, but testing it in your gun is the key.