Search:

The .22LR hyper-velocity light grain ammo is better for risk of ricochet than most of the other current production ammo - down side is that it's hard to get and I've not had much luck getting a rifle...

Modern .22 subs do seem to produce more ricochets, even had one on the range - went sideways out of the target frame into the bank at the side. Luckily not one of the modern ranges with no danger...