Not so sure on the ricochet part, but they are pretty nice rounds for some of the larger small game you might be interested in for 22lr hunting. It is a HYPER velocity round, so I wouldn't recommend shooting a lot of 'em in semi-autos (over 1,600fps).
They truly do separate into piece, leaving a few wound channels.
Also worth noting CCI has announced it's release of the Quick Shock Segmented Bullet in a 40gr load for the 22wmr.