I have used a number of different ones, plus converted two different 5 shot 32 cal Smith & Wesson break actions into blank guns. That way you have the option of the crazy stupid loud 32 blank, or just a primered case that is plenty loud for training. AND an all steel well built gun. I also bored out some 32 cases for 209’s but preferred the primers.
I have also used my ‘dummy launcher’ with no dummy and the 22 blanks for training. Not the most convenient, but it worked.
If I need to pull apart ammo and it uses small primers I save the primers to use in the 32 blank gun.