Would a .357 Max reamer clean up the .22 HP chamber (don't have any references handy)? If so, that leaves you a bunch of options w/handloads AND factory stuff. I've found the .357 Mag a reliable killer of pigs and deer at "woods" distances and assume that a Max would be "more of the same."
erich, where did you get them 14 gr. wadcutters? Not a lot of sectional density....*
*(or is this a case of "typing while impaired"? Just funnin' ya.)