FPNI

Spudtech.com. Doesn’t look like they are taking orders at the moment.

Sorry but I disagree.

Pneumatic.

Sucks to take a minute to charge it but I have launched a D cell battery with over 12 seconds of loft when fired straight up.   I have launched a lot of shit from spud guns in my day and the pneumatic stuff running a sprinkler valve rated for 115-125PSI is a bad bitch

If you could figure out the storage tank for quick charging you have the world's biggest air rifle.




There is a pipe diameter that a D-cell would slip fit just about perfectly into.  No tape needed because the air blowing by seemed to help it glide out of the barrel even easier.

And yeah.

Feeling a 6ft barrel spud gun with a 3in diameter by 3ft storage tube "recoil" like a kind of howtizer when you fire a D cell was fun.


If you rig it to have an electrical trigger...   do two switches in series so they both have to be pressed to fire.    I put a hole through the garage door and the ceiling with a C-cell battery the first time I wired up for electronic firing and only had one switch installed.


These days a 3D printer could make some awesome fin stabilized pieces for things like big assed 60d 5 inch long nails.   World's angriest blow gun or new Jart  "bombardment" high altitude world record holder...


the new hotness seems to be vacuum guns

This guy really perfected a simple design

I made quite a few of these back in the day. Ether/1 1/2" pipe/grill ignitor  are all solid advice. Several years ago I found a company that makes 1/ 1/2" rifled barrel stock, but never ordered any. They had quite the website, too. Triggers, scope mounts.....

ETA- beer has jogged my memory. I used a piece of pipe as a sizer to cut taters down to the correct OD, then cut them for length. I discovered I could use the cut-off tater circles like shotgun wadding, then dice up the rest of the spoil like hash browns. One wad 3" up the barrel, handful of hash brown grapeshot, another wad at the breech end of the barrel. If the tater wars really heated up, it was handy to have three or four such barrels already loaded and stuck in a quiver, or carried by a buddy. Crew-served area denial tater cannons are best cannons (except for real cannons).

I haven't shot this in years, it's pretty dirty, but here are some pics.

I added the quick disconnect  adapter so I could leave it connected to a compressor all the time. There's a standard fill nipple at the tip too.  That nozzle is what activates the valve. It’s WAY faster than electronic. It’s a 1” valve and I’ve removed all possible restriction/obstruction from the air path. The current barrel is sleeved (not perfect, see the gap) to fit golf balls. Its insane.

ETA Those two little pieces of pvc pipe and zip ties are only spacers to support the barrel.

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I always used those lantern strikers, gives off a good sized spark....

Once upon a time someone was selling rifled PVC tubing....

Twist rate for potato?

Dumb fuck was probably using acetylene.

I used to take mine down to 7 Ponds Park by Burlington and shoot it while camping, never had an issue.