I use a plain piece of printer paper when practicing with my snub revolvers. If when shooting double action, you can keep all of your shots in the paper, some what centered, you should be good to go for a short barreled self defense gun.
You can try strong hand, support hand, and two hand.
I usually practice at 25 feet and use 158 grain bullets because that is what I am most accurate with.
I am a snubbie fan and have several makes, models, and calibers. I think they make a great self defense gun but at least for me, it takes practice to shoot them well.
Make a hole