hey did you make them? my issue: i use homemade gun and homemade ammo.
I haven't tried making them yet. I think I might make a bolt action, test them out on that one and then use them in my automatic.
These all have to be made with hollow point ammo, well except the tracer one. Try and find a .22 pellet that has the largest and deepest hollow point.
However they should all be safe. Just use safe practices when making them. Don't use any tools that might deform pellets or create sparks when dealing with the pyrotechnics. When dealing with the cap gun powder, wear an anti-static wrist band to prevent it from detonating when you're working on it.
If you plan on making quite a bit of them, take all your substance, place it in a non-static container (ceramic or something) and mix it with water. It's best to add water to the container before you start extracting any powders. Stir it and use a pipette to use it. Makes ammo producing much easier and faster.