Have only fired one, and with a 12V battery, but it fired instantly and ignited the thick Chinese time fuse it was inserted in. Will probably order many more.
6 Inch Gold Panning Mineral Sifting Prospect Pan Classifier Sieve - 6pc Set
20 juillet 2019
Great for sieving and mixing chemicals.
I love these screens, perfect size for what I'm doing, which is screening charcoal, chemicals, and compositions for fireworks. They're a good size (diameter) to work with, and the tall side walls make them good for this use too. The screens are captured in the groove at the bottom quite strongly, and don't seem like they'll come out, at least not the way I'm using them.