Anyone use theirs as a frozen bait launcher?

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
Broylz
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I have recently completed my first build with a 4” pic chamber of 48” reduced down to 2” and then down again to 1.5” with a pair of street elbows to a ball valve and a 54” barrel. Pumped it up to 60psi and let it sit an hour with no pressure loss and no leaks found at any joints. Has a heavy duty metal tire valve in the 4” end cap to fill it. Waiting on tubes to freeze for test shots.

That said, I am already wanting to build a heavier duty version in hopes of launching larger shark baits out. I have a buddy with a drone that can carry about 4# or so and he drops about 2-600 yards off shore typically. Everyone else I know kayaks baits out in the dark without being able to see the water conditions very well. I’d like to be able to build a version with a 2” or larger barrel with the intent of getting larger frozen baits out past a couple hundred yards. Has anyone else done this? My plan is to build it out of schedule 80 pvc, possibly stainless tube, and charge it similar to a pcp air rifle by using a regulated scuba tank to charge it multiple times. I have to stay pneumatic powered only to keep it legal in Florida.
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mbellerose79
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Hey, I'm here just created an account for the same exact thought. Large baits, shark fishing, yeeting a massive frozen hunk out 400 yards. Lemme know if you came across anything. I'd totally be down to keep in touch as I am going to attempt to make a massive one myself. Barrel diameter is going to be the big thing. I feel like 3 inch seems overkill but it's a standard size we can get. Was thinking about trying to build a massive piston style valve between 3 inch and 4 inch like the guys do with the 1.5-2 style, and using six inch schedule 80 for the tank. The wall thicknesses I believe for those style piston valves might only be capable for schedule 40. Not sure. Have to see if the ratios are the same and all the added thickness is only exterior diameter.
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