re: Handgun for Coon Hunting

You might want to look at this article from American Rifleman about .22 WMR ammo (I rarely put any stock in articles the NRA publishes, but this one seems to be objective.)
LINK

The article deals with using the .22 WMR for self-defense. That's still a bad idea, and not what you're looking for -- but the author tests a lot of ammo in 10% ballistic ordnance gel, and found that four (4) rounds that expand reliably from a short barreled handgun. So they should certainly expand from your new revolver.

Excerpts:
It was also clear from the results, with the exception of four loads; Hornady’s Critical Defense, Speer’s Gold Dot, Winchester’s PDX1 and the somewhat surprising CCI TNT load, no other .22 WMR load will expand from a handgun.

Here’s another consideration. The Hornady, Speer and Winchester loads utilize flash-retarding propellants. That means that if you have to shoot in near darkness, you won’t be blinded by the light—muzzle flash. Even though the CCI TNT load expanded well in every test, the muzzle flash from it and the other loads was like a fireball.

The article contained extensive tables showing the results of his testing, but I didn't see them in the online copy I linked. But I have the printed article (with the table of test results) here at home and can scan & email it to you if you're interested.

p.s. I recently found the Gold Dot and the Hornady ammo that the writer recommends at a site call ammomenllc.com I don't plan on using a WMR round for SD, but I do sometimes carry a revolver in the woods (along with a G19), and figured I might as well carry ammo that is reportedly better than the .40 grain CCI MaxiMag I've been carrying.

Just my $.02