I load them for the .38/.357 and the .45 Colt. I usually use 7 1/2 shot, sometimes #9.
Speer Capsule work very well and inside their plastic boxes of shot cups, they have a little recipe card with different loads.
I use them when working around the barn and if I am fishing. If I can not get away safely from a snake, it dies.
We also use them to shoot balloons.
Inside Every Bright Idea Is The 50% Probability Of A Disaster Waiting To Happen.