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thiskid13

Member Since 21 Mar 2004
Offline Last Active Nov 24 2004 08:28 PM

Posts I've Made

In Topic: Bush's Space Plans

30 March 2004 - 12:22 AM

i'm not a total pacifist or anything like that, but with all this war money thats being thrown around, wouldn't it have done more good and cost fewer lives to just invest it in a starving country where everyone lives in slums. Bush had his reasons to go to iraq but if the war money went to one of those countries where everybody is starving to death it would have gotten more bang for the buck. i doubt bush really wanted to help anybody though and going to war is much cooler so he chose that. people have already said this but 12b could solve a hell of a lot of problems in the world. i don't think sending a couple of guys to mars is worth the price tag. we should probably spend our money fixing up the problems on earth before we think about screwing up other planets, and by 'we' i mean 'you' because i'm canadian and it isn't my money thats being thrown away by a dumbass

In Topic: High Velocity Super Gun

29 March 2004 - 11:46 PM

i'm glad i have 1/2" copper tubing then

In Topic: High Velocity Super Gun

29 March 2004 - 04:14 PM

11 feet might be too long but with how i shoot high velocity shots, the barel could be 5 feet too long and affect the velocity very little. for starters, lead slides against brass very easily. the lead balls that i shoot are around 0.4" but it might be less, i've never measured. all i know is that they are fairly big in the barrel but if the were shot right at the very centre of the bore they wouldn't touch the sides. to shoot them i put a wadded up piece of ceran wrap or kleenex behind the lead ball in the barrel. when it's shot the sabot isn't connected to the lead ball in any way so when it begins to deccelerate the lead ball just keeps going with almost no friction on on it. thats why i use 10 foot barrels, so for shots where i use a sabot i get the most acceleration possible. also, i know with a ball valve the projectile gets going before the valve is entirely open but with a solenoid valve wouldn't the same thing happen. on a much smaller potato gun i had problems with the valve not opening fast enough because the barrel was 12". i'm guessing the projectile was out the barrel before the valve fully opened. where the brass tubing met the thread fitting on the inside of the barrel there was a lip. i would make an aluminum sabot that would catch this lip and take about 20 pounds of pressure to knock loose. that way when it was shot the pressure was at its highest and i guess the sudden dislodging helped with acceleration. with the 12" barrel i was able to shoot lead weights about 300 feet with about a 20* angle.
Gun Idea:
i bet i could make a mini gun like that, with about an 8" x 0.5"barrel and a tank that was about 8" x 1" (125psi). with the same sort of sabot method it would have decent range and power, and it would be very compact. i bet with the small volume of air a silencer would work well on it.

I have an even minier gun with a Co2 cartrige as a tank and a 10"x0.3" brass barrel. i called it 'the assassin' because if you're wearing a long sleeved shirt of any kind you can stick it up your sleeve with out it being seen. if you make a fist you can make it so the barrel comes up under your fore arm and just between two knuckles so that only the very tip of the barrel is showing. it shoots playdough balls about 100-150fps and because of the low volume of air it's extemely quiet. i took it to a school foot ball game with a hand pump that goes to 50psi. I shot about 20 people and no one ever found out it was me. my most prized shot was when i shot some people who were in the row infront of us as they were turned around talking to me and my friends. they couldn't figure out what the hell happened and we were laughing our asses off. it is basiacally invisible when its shot so even if it was loud at all no one would figure out where it came from. for the risk of getting caught, pumping it up is more risky than actually shooting because thats the only time it can be seen. i know i was sort of all over the place there but i just wanted to add some new ideas in this gun category.

In Topic: High Velocity Super Gun

28 March 2004 - 01:45 PM

ok, no problem then, i actually appreciate your work because i after finding out that my gun can't shoot batteries at that speed i wanted to know what it would take to do so.

In Topic: High Velocity Super Gun

28 March 2004 - 11:09 AM

boltsniper, if you could put that much effort into a post you have put in the effort to read all the posts. this has already been resolved, i left out the other projectiles that i shoot because i didn't think there would much difference between them and AA batteries. the other projectiles would have taken a little more explaining so i just said AA batteries. everyone has proved to me that there is a drastic difference between AA batteries and 0.4" lead balls, not as much in weight but in drag, which i didn't consider. I'll edit my original post so there is no more confusion.