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<blockquote data-quote="tack" data-source="post: 1259693" data-attributes="member: 13735"><p>What difference does metal make?&nbsp; Micro-sparking with carbon granules?&nbsp; Catalyst?&nbsp; Type of metal must make a difference.&nbsp; But even with ceramic or glass pestle and motar - I think I&#039;ll pass on crushing BP.&nbsp; The older I get the more risk averse I get too <img src="/images/smilies/image488.gif"&nbsp; class="smilie" loading="lazy" alt=":bigeye:" title="Image488&nbsp; &nbsp; :bigeye:" data-shortname=":bigeye:" />&nbsp; At one time I was going to make some but decided that the amount needed wasn&#039;t worth the effort.&nbsp; A person can buy airfloat willow charcoal.&nbsp; Sulphur and saltpeter are easy to get too.&nbsp; There are websites that sell components whereby one can make their own fireworks.&nbsp; The hard part is the milling.&nbsp; A person can get a Harbour Freight tumbler (rubber lined drum) throw in a handfull of large lead balls with the damp powder, and let the &quot;ball mill&quot; run for a few days.&nbsp; I understand that the main reason folks fail at making BP is the milling isn&#039;t done right.&nbsp; Saltpeter has to be so well incorporated with the carbon that a particle isn&#039;t more than a few molecules wide before it comes in contact with oxidizer.</p></blockquote><p></p>

[QUOTE="tack, post: 1259693, member: 13735"] What difference does metal make? Micro-sparking with carbon granules? Catalyst? Type of metal must make a difference. But even with ceramic or glass pestle and motar - I think I'll pass on crushing BP. The older I get the more risk averse I get too :bigeye: At one time I was going to make some but decided that the amount needed wasn't worth the effort. A person can buy airfloat willow charcoal. Sulphur and saltpeter are easy to get too. There are websites that sell components whereby one can make their own fireworks. The hard part is the milling. A person can get a Harbour Freight tumbler (rubber lined drum) throw in a handfull of large lead balls with the damp powder, and let the "ball mill" run for a few days. I understand that the main reason folks fail at making BP is the milling isn't done right. Saltpeter has to be so well incorporated with the carbon that a particle isn't more than a few molecules wide before it comes in contact with oxidizer. [/QUOTE]

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