I love my 642 snubbie for plinking. The game is to line a couple of guys up and place a tennis ball 10' feet in front of each shooter. You alternate shots and see who can move their ball the longer distance with 5 shots. Depending on the terrain and point of impact on the ball, you get some funny bounces. It goes without saying that you need a safe backstop.
2.5 grains of Clays and a 125-130 grain bullet works best. The heavier the bullet the higher the impact. By using a "high grip hold" and squeezing tight with the last 3 fingers you can get close to "point of aim".
We did the same game with .22 handguns, 5 shooters, unlimited reloads and shot over a thousand rounds. Have fun and be safe.
Tim