Will this work under water?

Just having fun one day probably wouldnt work under water, some of you have seen already...

Think it would be hard... To hit a Heineken Keg from under the water   

It should work!  That's a poor man "Hawaiian Sling" 

It will work.  Hawaiian slings are made out of all sorts of odds & ends from hollowed out bamboo sections to PVC cut-offs.  The main challenge of slings is that it's typically free-shafting (without a line attached).  With our mediocre-at-best vis and dense seaweed/kelp growth on the bottom, it'd be easy to lose a shaft.

A cool mod that hawaiians would do is attatch a gate hinge to the front end of tube.  I used a couple of these growing up... still have one back at my place in Hawaii.    This site explains it far better than I could:
http://rocknfish.com/HingeGun.html

Nice shot Andy
Now try shooting the Pale Ale bottle from the same distance
I love DIY projects!

I'm glad to see you drained the carcass of the keg before shooting it Andy.
You must have a fun house to hang out at.

Fuzz, that gate hinged sling is too cool!

A guy on Speargun Hunter was using a homemade sling very similar to that, he was quite a shot!  Just thread the end to accept a tip and maybe put a slider on the shaft to attach a line or float to.  It would be cool to see some fish taken with it!  Nice job.

A guy on Speargun Hunter was using a homemade sling very similar to that, he was quite a shot!  Just thread the end to accept a tip and maybe put a slider on the shaft to attach a line or float to.  It would be cool to see some fish taken with it!  Nice job.

In areas like the Bahamas, it's illegal to spear fish by any means other than a Hawaiian sling or polespear.  People that dive there get good at very quickly. 

Haha don't lie! We know you just want to shoot a racoon with that thing!

ha ha that would be great for slimmin dow the racoons in town!! and alot quieter that lettin the dog out

Savage! I want to try too.

Very cool vid man. I think it would work for close range shots. jim

gopher?