you want the opposite - the finest grain powder you can get. The larger granules burn slower, the smaller ones faster. So a payload of FFFFg would be preferable to FFFg or FFg. Even better would be to get some actual firecracker powder as it uses a different composition. We used to be able to get firecrackers the size of your finger. They were about three or four wraps of heavy paper around a fistful of powder and were nice and loud. We learned that we could add layers to that firecracker by wrapping more paper around it and this increased the BANG when it went off. BUT we had to make sure and tie the ends tight or it would just blow out one end.
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Still learning on loading 26.5mm varmint loads
- WB, 2021-09-19, 09:46
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You want the coarsest grain powder you can get
- AmBraCol, 2021-09-20, 08:03
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Many good points! I'm ignorant about fireworks
- WB, 2021-09-20, 19:48
- For your payload... - AmBraCol, 2021-09-22, 07:15
- Years ago (early to mid 90's) - AmBraCol, 2021-09-21, 13:07
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Many good points! I'm ignorant about fireworks
- WB, 2021-09-20, 19:48
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I would try the model rocket motors
- steve todd, 2021-09-19, 10:46
- W/O wadding I think it would blow too (nm) - WB, 2021-09-19, 11:58
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You want the coarsest grain powder you can get
- AmBraCol, 2021-09-20, 08:03