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The firecrackers and the large bottle rocket look exactly like the ones we would get in Baja in the early 90s.

Well, California banned sparklers with the metal wires in 1991. So they are at least that old.

I'm sure VOD. amount of gas produced and maybe peak pressure play into what an explosion sounds like. I can say that detcord (usually PETN based) has a very loud, higher-frequency sound that is kind...

Those are cool because you get used to seeing hundreds of tube-launched shots following the same, familiar trajectory during the show. When those launch, they can change direction at different...

It wouldn't surprise me. Mexico makes a lot of pyrotechnic items for mining and blasting. And some of our beloved initiators may even be produced there. So it would make sense for a more...

Right, Brisance is a term that describes "shattering power" but there is no standard measure of it. In general, higher brisance means that an explosive is more capable of cutting things like steel or...

It's probably a couple of factors:

1. Black powder vs flash, which has a bunch of different formulas.
2. Better containment of the explosion (ie. a heavier casing)
3. Critical diameter (not all...

These are fun to make. Get a cordless or air-powered brad/finish nailer and ideally, a cordless hot glue gun. A regular one is probably OK, but it's a little safer to not have 110V around the live...

What it comes down to is that fire departments and police bomb squads don't know anything about fireworks but also are afraid to go get help. Given how the display fireworks industry works, I think...

Blowing up a perfectly good house would be Holladay, Utah:

https://www.firehouse.com/operations-training/video/55021365/antient-dynamite-detonated-in-holladay-ut-house

They did this near San Diego a few years ago. But that guy had YEARS worth of waste, residue and homemade explosives lying all over the property. So I'd say that one was a little more...

Quick, call LAPD.

Is it a reusable talon-type igniter?

Scotchlok connectors also work. You can get a box of them and the tool pretty cheap on Amazon or eBay. You don't need genuine 3M brand for this.

I think this is similar to people who collect old medicine bottles. You can't get away with selling full bottles of narcotics, but the DEA isn't actively looking to arrest someone with a museum...

Thanks! It could be a decent deal for everyone if it works out.

It would be an on-going need, and they can wait until after 4th of July. It would be a 1.4S product similar to this:
https://www.royexsystem.com/rock-breaking-cartridges/

I have a client that is importing a low explosive product for mining. They are looking for type 4 storage within 2 hours of the Chicago area and are willing to pay. If anyone has a lead, please...

I think only a small percentage of the ATF field employees do the explosive stuff, and I get the impression that they aren't super busy. I reported a missing UPS shipment of 1.4S goods to ATF, and...

Nornally, ATF lets you make corrections to the application during your interview. But he might want to reach out to his inspector prior to the visit.

I don't know that APA can prevent you from getting EX numbers completely if you want to go through enough effort. But I do know there is an "easy way" and a "hard way." The easy way is to follow...

You might be able to get a rider on your regular homeowners policy.

Yeah, CA won't let you buy the good sparklers with wires.

I found it. See page 33 of this book:
https://www.cdc.gov/niosh/mining/UserFiles/works/pdfs/bul017.pdf
6905
6906

It is similar to a fuse, but stiff and straight. I suspect the "No. 1" refers to the length. The origin of this product was miners filling a hollow reed or quill with packed powder and using that...