If you go with the .22 remember that long barrels are mostly your friend, get the fastest rounds you can find. Solids will penetrate, HPs will give some small expansion. It is trade off but you have to work with you have.
I assume you are selling your .38s?
Tomorrow is the most important thing in life. Comes into us at midnight very clean. It's perfect when it arrives and it puts itself in our hands. It hopes we've learned something from yesterday.