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Odd but effective alternate ammoI'm sure we've all used some pretty weird things shoved into a Spud gun barrel to shoot, but have you ever used something so strange yet it actually has good performance?
I recently built a cheap-o sprinkler valve mortar with 2" PVC and I was amazed that empty caulk tubes could fly up to 500 feet!
This weapon serves to silence the noisy speakers of the stupid of the other street! (joke) -Hectmarr
Re: Odd but effective alternate ammoCareful what you point it at, you don't want to call 911 to say someone has been injured by a flying caulk
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Re: Odd but effective alternate ammo
Especially if your accent makes it come out as "flying cock".
Re: Odd but effective alternate ammo
Re: Odd but effective alternate ammo500ft!
![]() How much does that tube weigh..? ![]() How much psi did you use? ![]()
Re: Odd but effective alternate ammo
I haven't weighed the tube, but when I do I'll post it. I'm running at only around 40 psi. The reason for the immense range is that since it's a mortar it's fired at 45°. When aimed horizontally it only goes about 45-50 feet. I'll probably make a separate thread about it later, but I want to build the bipod and baseplate first.
This weapon serves to silence the noisy speakers of the stupid of the other street! (joke) -Hectmarr
Re: Odd but effective alternate ammoThe caulk tubes sadly break after hitting the ground so many times, so I've been trying to replicate their design, but I encountered some problems.
How do you calculate the optimal mass for a projectile to get the best range? Is there a way I can get my projectile to whistle as it flies?
This weapon serves to silence the noisy speakers of the stupid of the other street! (joke) -Hectmarr
Re: Odd but effective alternate ammo
Re: Odd but effective alternate ammo
GGDT includes an External Ballistics Tool that can be helpful.
Stick one of these on the front ![]() ![]()
Re: Odd but effective alternate ammoJack i was thinking of these when i read this post also.
![]() For something funny i would throw an actual whistle in the tube. You wanted it to whistle right? ![]() I heard of a guy putting a whistle in his blow off valve for his car...would have made people turn their heads thinking a referee was on the streets.
Re: Odd but effective alternate ammo
Antonios, Mentale!!! ![]() hehehe been a while since the last Chanel 9 Neus reference on this forum, @POLAND_SPUD where you at?
Re: Odd but effective alternate ammo
That's mostly about optimal launch angle rather than optimal mass, funnily enough I've actually seen that exact article in my physics class a couple years ago to show the proof behind the whole "45°" launch angle belief. Found a way to get it to whistle without having to buy a nerf football: I cut the head off a nerf mega dart (which have whistles built in) and glued it to the head of my projectile. Mass is still a problem.
This weapon serves to silence the noisy speakers of the stupid of the other street! (joke) -Hectmarr
Re: Odd but effective alternate ammo
Pour some cheap epoxy into the head ![]()
For a drag stabilized projectile it's usually closer to 55 degrees. Fr Frog has some relevant data on the Fin Stabilized M829 anti-tank round.
Re: Odd but effective alternate ammoI dumped a bunch it bits of scrap metal into the body and sealed it with hotglue under a foam disk. It exploded as it left the barrel, but it's a start!
I put an ad out on Craigslist saying I was buying used caulk tubes, let's see if I get any bites!
This weapon serves to silence the noisy speakers of the stupid of the other street! (joke) -Hectmarr
Re: Odd but effective alternate ammo
"Hi, heard you were paying for used caulk?" "Uhh..."
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