Water gun conversion: barrel addition

His this is only my second post so if it sucks, tell me so. I was rummaging around in my toy box (Nerf guns, water guns etc.) and i found an old water gun that had a stuffed up trigger, one of those super soaker ones that have a secondary fire that sprays the whole pressure tank out at once. This got me thinking, I wonder what the psi in that tank is, must be kinda high to get water 10 meters. I tried it out by holding a vulcan chain against the nozzle and that got about 30 meters. pretty good for the barrel being only as long as one chain link. This led me to the idea of adding a barrel only problem was, I didn't know where to get it .
Massive fluke was that i found a hobby store near my school that sell's all the brass i would ever need, and my school was having a production which involved garbage, which in turn involved a PVC pipe that was perfect size. anyway i bought my brass and rapped each end in some heavy duty tape

This then fit inside the PVC perfectly

i had to shave away some on the nozzle to fit the pipe but its a tight fit so it doesnt need glue
here is the finished gun.

errr Your pictures are all the same.

i know its only a few days after my first post but i made my first stefans with 15 mm backer rod and they were not going down my barrel. To combat this i pulled the brass forward so that after every shot it could be removed for easy access to the back.
here is a pic of the barrel


It's actually really long so to give you an idea of how long.


I'm open for suggestions and comments.

30 meters? Serious? Just asking because the way you generally measure distance with Nerf isn't an angled shot but perfectly level at average height (so say 150cm - 190cm above ground) If you can get 30 meters level, I'm off to buy one tomorrow!

yeah its level well as far as i can tell the gun is at a funny angle anyway. but yeah if its angles it does half my street which is about 50-60. I think it's because of the flash flood system,it allows the whole pressure tank to be let out all at once (notice that the barrel is connected to the larger nozzle) only downside is i cant use the trigger because it jams open and i have to open the gun up to un-jam it.

whoops maybe that was a bit vague. to fire it you pull the blue handle on top of the gun. sorry.

I have that supersoaker... But it's at my grandpa's houese.
In south Africa.

lol.

Fail.













No hard Feelings.

don't worry!

Bigles

i'm sick of removing the brass to reload so i'm gonna move it back in and make a breach. Only problem is i have NO idea what i'm doing. heres my list of problems if you can help PLEASE do:
-What sized brass should i use to slide over my 19/32 that will be airtight if there isnt one how could i make it air tight?
-Where can i get a dremel/rotary tool?
-How can i secure a post or handle to a thin brass pipe so that i can hold it to slide the brass back and forward?
-Is a dremel/rotary tool of any use on the grey PVC i have used?
i repeat if you can help PLEASE PLEASE PLEASE do

As far as the brass size is concerned, I won't be able to help as I haven't done any brasswork on my guns before. However a Dremel or other handheld rotary tool should be available at any hardware store, and while it may be pricey I definitely recommend getting a brand-name Dremel than a knockoff or cheapo. As far as securing anything to brass, sand or score the area you want to glue to so that it's not a polished finish, this will help the sticky stuff stick. Use Epoxy putty or Liquid Nails or for that matter just cruise around the hardware looking for "Bonds Metals, Plastics" etc. or simply ask a clerk for a hand.

As far as finding the appropriate brass pipe, you could take a small sample of the one you've used to a hobby/hardware store and ask for some assistance.

Are you posing in the first picture?

lol no i was in a funny position and i was trying to get the hole pipe into the shot and my face.....


no explanation at all i was like squinting cause my laptop screen is covered in finger prints (i think)
EPIC FAIL

Update: i have now sorted out all of those problems and am onto the designing stage here is my idea:

key:
thick black = PVC
dotted black = hole
bronze edge = brass tube
bronze solid = brass rod
black solid = tape

once again any suggestions or ideas are open for discussion

I've never made a breach but that looks simple enough to work

ok its been a long time coming but my conversion is pretty much complete. I minimised the gun by removing the water tank (for use as a separate dart holder) and finished my breech. I ditched the brass cause it was too loose for everything but my 15mm darts and i replaced it with approximately 2ft of PETG. I then cut a breech in the grey PVC towards the back of the barrel the PETG slides forward past the opening in the PVC to accept the dart, after the dart is in it is pushed back and seals in front of the breech. yeah sounds confusing but is simple here are some pics.


here is the minimalisation.


the breech open with one of informers sexy looking darts.


breech closed with dart loaded (as you can quite easily tell)

not sure about ranges but in sheer practicality through size and easy of use it beats my titan.

this is great i have this water gun

Necro time!