I have the same Rebel XT. Wonderful camera. Well, my parents have it, but I'm the only one that uses it. SO when you leave the shutter open, what do you set the aperture on?

I do a few test exposures before hand by passing my hand in front of the laser to simulate the shot. Then I look at the ...

Wow, i have the same camera- i only paid 100$ :D It takes great shots of anything. I think the best shots i have taken have been of lightning. Thanks heaps for the info in regards to your setup, i may have to try that one day :P

How i the world did you get it for 100? A friend? Anyways, it is so ...

EDIT: holy crap I didn't see where the page numbers were on this forum, I thought the latest post was on page one! Sorry for not keeping up.

Haha nice, I'm currently making a hardened steel APFSDS round similiar to yours except longer. I finally got a welder to make it :D
OH MAN, you get extra ...

Oh, your point about the size of the gap is really good. On the stun gun it is about 3/8 inch, I can adjust that in accordance with how much insulation I can get a hold of. Thanks again, this is all very useful.

How durable are batteries? That sounds interesting but not if I get splattered with acid.

I was just struck by genius!
So I've wanted to shoot marbles for a while but didn't want to take the time to make something just for it.

I just realized I can use my paintball gun. For a sabot, I can ...

How's the accuracy?

You cant "make the targets explode into shreds" if you cant hit them. :lol:

We fired it for a distance of about 20yards maybe and combined with the recoil and the sabot flying everywhere I didn't get a good look at high straight it traveled. But accuracy isn't my main ...

Good work!!

Maybe make it a bit thinner so it will have less area to penetrate.
Or make the fins out of a thinner plate so it would reduce drag, and decrease effect of the fins slowing it down when going through w/e your trying to penetrate.

Yeah, that sounds like a good idea. Although it did ...

19mm diameter projectile made from a still spike. With the fins, it is just under 2inch diameter. 50mm with sabot. About 5 inches long.
http://i100.photobucket.com/albums/m37/matt3118/IMG_3829copy.jpg
http://i100.photobucket.com/albums/m37/matt3118/IMG_3789copy.jpg
To fill the barrel, my friend ...

Aah, that makes sense. Thanks, that helped a lot. I'll try extending the switch tomorrow. Thanks again!

So I got really frustrated with crappy push-button sparkers, so I bought a 400,000 volt stun gun off eBay for $25 with shipping. Now I want to connect wires to its prongs so I can fire the gun from a distance.

My question-
What gauge wire would you say is best? - Or does gauge even matter at all ...