r/pyro 9h ago

1 lb rocket with 3 inch ball shell heading

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19 Upvotes

r/pyro 10h ago

Magnesium - Flake vs Granular

0 Upvotes

So about 4 years ago I was able to get 1 lb of -325 mesh magnesium flake from hobbychemicalsupply which is just about finished now. It was used to make a great 50:50 mix with kclo4 to produce 0.25 gram paper blasting caps.

I still routinely use these caps in miniature action shots to make believable pyrotechnic ground effects: bullet hits, super hero landings, etc

Unfortunately the flake is no longer available on hobbychemicalsupply but I do see a -325 mesh granular magnesium powder. I've been reading literature online but it's often contradictory so I haven't been able to get a clear answer.

My question is, would it work the same as Mg flake?

And yes I know dark pyro is readily available for a 70:30 mix but I've found that it doesn't give the same "oomph" on camera. I could use more powder in the blasting caps to offset but I prefer to use make and use the smallest amounts possible as a precaution even though magnesium is purportedly not as stable.


r/pyro 16h ago

I have 3 1/1 cash games I need to sale no space. Moving can ship also 350$ for all 3

1 Upvotes

I have 3 1/1 cash games I need to sale no space. Moving can ship also 350$ for all 3


r/pyro 17h ago

Didn't blew up

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0 Upvotes

Tried this big ass salute, with 1,2kg of BP, 75/15/10 of Kno3, charcoal and sulfur.

It did a little Bang but not very loud, and started to burn for a short time. Anyone knows what did go wrong ? I did my test on a safe concrete surface. Did not film it unfortunately.

I suppose that the container was not solid enough to contain all the explosion, so it shattered and and the remaining powder burned. How can i improve this ? Thanks !


r/pyro 1d ago

Which particle size is the right one for medium and large calibers?

3 Upvotes

have a choice between two perchlorate products:

Fine: particle size 0–150 microns, D50 = 45 microns
Ultrafine: particle size 0–45 microns, D50 = 20 microns
I’m a bit confused because I assumed that the smaller the material, the better/faster it reacts.
So why is the fine material advertised for medium to large flashes, while the ultrafine material is only recommended for small-caliber flashes?


r/pyro 2d ago

Whose ready for Labor Day next weekend

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11 Upvotes

r/pyro 2d ago

Burst charge question

6 Upvotes

I have been reading Fulcanelli articles for canister shells, and I can’t seem to find anything on burst charge. Besides the fact that they’re just using granulated Bp and 3 inch and up. I’m curious what to use for below 3 inch and wouldn’t granulated black powder. Get too heavy at those higher things as there ever a point where you swapped rice hulls I’m also very surprised on the fact that they only do 6 to 9 layers of pasting total and only one time of spiking if anyone could clarify this that would be great


r/pyro 3d ago

Bp

3 Upvotes

Is there any reliable way to make bp without a ball mill?


r/pyro 3d ago

Smoke grenade for a spud gun: why doesn't my fuse ignite?

3 Upvotes

[SOLVED] Using more matches head and more steel wool made it work.

I've been looking into exotic projectiles for my butane powered spud gun lately. One of these is a smoke grenade. It's a cardboard tube with two end caps and holes on the side, and a thin layer of paper on the inside to prevent the mix from falling. A visco fuse is glued on the cap on the combustion chambers side.

My problem is that the fuse doesn't ignite. I tried to strip the fuse so the bp inside is directly exposed to the flame, it didn't work. I tried to attach some steel wool to the stripped fuse, the steel wool ignited but not the fuse. I tried to add two matches head to the stripped fuse with steel wool, the matches ignited but the fuse still didn't ignite.

Since y'all are pretty good at setting stuff on fire, do you have some ideas please?


r/pyro 4d ago

d'un boîtier d'affichage de 16" ... sous le capot

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33 Upvotes

r/pyro 4d ago

Pyrotechnics in Greece

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1 Upvotes

r/pyro 5d ago

do spiral vs parallel tubes make a big diffenence for firecrackers

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21 Upvotes

r/pyro 5d ago

Proportions

0 Upvotes

If I were to make a triangle cracker out of kno3 + MgAl + S what would the proportions be? I have been making little triangle crackers with my bp for almost 2 years and I wanted to try out a new powder.


r/pyro 5d ago

best type of endcaps?

2 Upvotes

what endcaps should you use for firecrackers


r/pyro 5d ago

Chlorate cell porn

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14 Upvotes

2 gallon reactor, Ran continuously for almost 2 weeks @ 190-220 watts. Topping off every day with concentrated potassium solution and a drop of HCL (muriatic) twice a day.


r/pyro 6d ago

DIY rack. How’d I do?

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4 Upvotes

First time. No plans. Just learned from you all!


r/pyro 5d ago

Fireworks

0 Upvotes

Where legit i van buy F4 fireworks ?(Cobra)

On websides


r/pyro 6d ago

Match head/ scratch head firecravkers

0 Upvotes

How are these types of firecrackers actually made? I can't seem to find any tutorials online on how it make them, I have an idea that they are made from match heads,, but I can't understand how are they are able to burn slowly and how can I make them burn slow?

I also know that the mixture is mixed with water to be made wet, so after it dries on the top of the firecracker it sits beautifully.


r/pyro 7d ago

Rocket Headings

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8 Upvotes

Guys/Gals,

By natural evolution of making fireworks, I'm on to rockets. I had the misfortune/happy accident of having some canisters sent to me. They are easily loaded and fit right on top of 1 lb rockets. 🚀

Thank you for the suggestions about how to use these, I'll try to do as many things as I can with them....


r/pyro 8d ago

Aftermath of my tube

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14 Upvotes

r/pyro 9d ago

3in shell fail

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51 Upvotes

My burst was a little to strong


r/pyro 8d ago

Magnesium Activation Energy

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1 Upvotes

r/pyro 9d ago

Firecracker labels

2 Upvotes

Does anyone have labels for bangers 50-200g? i have cobra ultimate, scream 100, dum bum 30 and black mamba and looking for new labels


r/pyro 9d ago

Help

0 Upvotes

I was wondering on how to make firecrackers because so far I’ve js been using gunpowder that wasn’t given to me by my dad but I’ve been running low. How can I make bp that can be used in firecrackers? Also is it possible to js buy a ton of the little red ones, take them apart, and just use the powder that is already in them? Lastly, is a mix of kno3 magnalium and sulfur good enough for firecrackers because that’s the only stuff I can buy from amazon? I AM NOT ASKING ON HOW TO MAKE FLASH POWDER AS I UNDERSTAND THE RISKS OF IT


r/pyro 9d ago

Plastic tube

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4 Upvotes

Just found this on the floor, is it okay for flash powder or mg/s ?