The minimum cal are close to 222r we use hollowpoint bullets so they expand fast, often stays in the beaver. There I hunt I dont worry about riccochets the forest on the river banks takes the bullet If it happens. I prefer to shoot the beaver then its on land because its easy to loose it if its in water.Joking apart, and I have grinned at the comments, do you have a minimum calibre/energy rule and how difficult is it to manage the riccochet risk with all the water?
David.
