pendulum

Hi

I made my first ever batch of blackpowder today. I tested it by burning it in a straight line, and it burnt quite enthusiastically and quick. I put a few grams inside a banger casing and lit the fuse, and it did produce a "pop" and pushed out a glued-in-place endcap. So it's not terrible BP.

Do you think this will be good enough for my rocket motor? The charcoal used was bought from a petshop but the other 2 chemicals were good quality. I ball milled the charcoal and the sulphur was already very fine. The kno3 was quite big particle size and could've done with milling.

Do you think I would need to mill all 3 together to make good BP or is what I have sufficient? I just mixed all 3 chemicals together by gentle shaking. I know the obvious answer is 'test it' but I don't have the bentonite to make the nozzle nor the rocket ramming kit yet so I can't.

Is willow charcoal necessary for rocket motors? It's quite expensive from eBay etc but I guess it would last a long time.

Hi

Could someone recommend a good ball mill website? It needs to be in the UK. I am only after a small ball mill and want to spend less than ?60 preferably (inc. delivery). Does anyone have any suggestions.

Thanks

Hi

I have a lot of spare Mg ribbon that I bought a while ago and have no use for now. I'd like to get rid of it but can't figure out how to send it legally.

I know it's a dangerous good and must be sent by a courier who accepts it, but the problem is I just can't find any that do. Can anyone name any that I could have a look at?

Also I'm a bit stumped for the regulations on packing it.

I've got quite a lot because I bought 3 reels of it a while ago to get free postage and used about quarter of one reel at the moment after many months.

I'm carrying on looking at Google for the regulations but any help here is appreciated
It's really tempting to stick a small quantity in a plain envelope and send it but not very responsible, I am not going to do that.