Beeman Kodiak in .22

What John said. I would add: the Barracuda Match (slightly more expensive than the standard) are sorted by head size, to a reasonable degree of accuracy. It may be worth your while to see if head size affects your rifle's poi. There are ebay dealers I've used to buy 25-pellet samples for a few bucks (they carry the match pellets), which makes testing the various head sizes a little cheaper than buying a full tin.