K22, I must have overlooked your question of the 22 mag bullets I use. I too use the Winchester 40 gr. Super-X hollow points. Those seem to group pretty good in my Ruger VMBZ. I am fortunate to have purchased about 8 boxes of them before the Obummer scare got things going crazy.
Yesterday I found some CCI 30 gr. V-Max and picked up two boxes. They actually had quite a few boxes of it on the shelf, the first 22 mag ammo I have seen in quite a while. It was pricy but I got it anyway. Don't know how it will shoot or perform in my particular rifle. Just mainly wanted to have more ammo on hand.
As to the Winchester 40 HPs, I have only taken one coyote and one bobcat with those, so that isn't a very good indicator of how they might perform. The coyote was head shot at approximately 75 yards and dropped like a sack of potatoes. The bobcat was shot at a similar distance. It was quartering to me and I shot it in the left front shoulder. The bullet kind-of changed course a little bit and exited the opposite side, but a little more forward than I thought it should have, given the angle. The cat dropped right there, paralyzed and couldn't move. I had to finish it, but the bullet certainly did penetrate well and a fair size exit wound.