It's going to end up being a manometric high pressure gun. I'll need to find replacements for burst disks, because at the moment, I'll have to go through about 10 soda cans haha.
I might look into thick sheet metal, where only one piece is required.
Managing 20 soda can cutouts would be a real pain!
2" Union Burst Disks
You're right, more like 20 
It's all sch 80 forged steel (except for fueling, metering, etc)
In HGDT: With a 10x mix, 200psi burst disks give me 1000 fps for a lead projectile. The same mix and projectile, but with a 300psi burst disk, I get 1200fps.
The more burning I get to happen in the chamber before the disks rupture, the more energy is transferred to the projectile.
I'm looking into 14 gauge aluminum sheet metal as a burst disk.
It's all sch 80 forged steel (except for fueling, metering, etc)
In HGDT: With a 10x mix, 200psi burst disks give me 1000 fps for a lead projectile. The same mix and projectile, but with a 300psi burst disk, I get 1200fps.
The more burning I get to happen in the chamber before the disks rupture, the more energy is transferred to the projectile.
I'm looking into 14 gauge aluminum sheet metal as a burst disk.
Last edited by whoa044 on Wed Sep 29, 2010 3:16 pm, edited 1 time in total.
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MrCrowley
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Don't bother with 10x mixes unless the disk is bursting 600PSI+ in my opinion. Drop the mix, keep the burst pressure the same and the velocity is probably quite similar.In HGDT: With a 10x mix, 200psi burst disks give me 1000 fps for a lead projectile. The same mix and projectile, but with a 300psi burst disk, I get 1200fps.
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SpudBlaster15
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Last edited by SpudBlaster15 on Thu Jul 15, 2021 1:43 am, edited 1 time in total.