That sucker would really shoot the Winchester Super X 40 gr. hollowpoint load.
I've only been shooting the 22 mag for about 60 years. For the first 40 years, I think we only had the WW 40 gr. HP. I have tried many of the newer / latest rounds but the old WW 40 gr. HP still works best for me.
BTW good shooting Lil' Crittrgittr!!