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Old 11-21-2017, 09:55 PM   #11 (permalink)
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Be careful... if you convertical the barrel from plastic to metal might cause an issue with the Bureau of All Things Fun and Excellent.

As to the shells, I had been working on a design to use nail gun shells instead of primers. My thought process was to vent excess energy via a set of holes in the shell casing. It could eliminate some of the extra pieces in the construction of individual cases.

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Old 11-21-2017, 10:28 PM   #12 (permalink)
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Be careful... if you convertical the barrel from plastic to metal might cause an issue with the Bureau of All Things Fun and Excellent.
Ty
Good point. I'll have to check into such things so I don't get tangled up with the Feds and end up stepping on my ****.
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Old 12-04-2017, 06:04 PM   #13 (permalink)
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Who was 3d printing shells on here? I recall seeing the pictures, but I don't recall them having much success due to durability.
Was I - nylon was too soft (absorbed impact from the striker, no ignition), PETG was too brittle (ignition, but shells explode). I've since acquired stronger 3D filament, but no time. Job and new family doesn't leave much for tinkering.

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Old 12-05-2017, 12:34 AM   #14 (permalink)
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Job and new family doesn't leave much for tinkering.
Any chance you'd have the time and inclination to share the dimensions for your shells?
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Old 12-06-2017, 12:37 PM   #15 (permalink)
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Any chance you'd have the time and inclination to share the dimensions for your shells?
PM me your address and i'll send you a few casings.
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Ok choochie, the duck is not troubled, it's dated. The technology is old, it's like 8mm stop motion film reels, nothing will ever replace them, they are nostalgic one of a kind but for today's youth the expectations are CGI.
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Old 12-06-2017, 12:50 PM   #16 (permalink)
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Woohoo!
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Old 04-15-2018, 01:49 PM   #17 (permalink)
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I sent cartridges to several people over the years with the intention of replication. Great things have failed to happen.
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Old 04-15-2018, 03:33 PM   #18 (permalink)
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I sent cartridges to several people over the years with the intention of replication. Great things have failed to happen.
Lol. What? You saying I'm not bound for greatness?

You're likely right. Never know 'til you try though. Realistically, making shells is like 6th or 7th on my ever changing project list. I did just bore my first hole after finally setting up my mini lathe. So, progress!!!
If and or when I get a design working it still wouldn't make much sense for production. Doc's estimate of $8-12 bucks a shell might even be optimistic. Just posting blueprints and a BOM is much more likely.
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Old 04-15-2018, 04:36 PM   #19 (permalink)
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I think the nelson .40 caliber would work. I am using a .395 barrel in my .40 caliber single action revolver conversions and they work really well. The paint is readily available from nelson paint.

Yes making shells although not complex they would be expensive.

I have messed around with 85's years ago. I got all the original reloading tools paint,shells an a couple 85's. My interest was always the shell fed aspect which I am happy to say I found it in my colt bb pistols. The shell eject in the 85's is awe inspiring. We could do so much with that design if it wasn't so close to the firearm/not firearm line . Imagine what we could build with no hpa or other compressed gases . The energy trapped in a primer is pretty impressive.

But the Mod 85 is none the less an interesting quasi paintball pistol.
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