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Old Gun Tech Specific how-to's on fixing and tuning in those old guns

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Old 06-21-2013, 10:42 PM   #1 (permalink)
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Brass Eagle Nightmare

I need to drop the fps on this beast.
It's shooting 370 right now (Which I'm personally fine with, apparently it's 'not allowed' and 'being a dick')

I have to mess around with the spring... which spring do I toy with?

Would cutting and filing be best? or compress it and torch it quickly?
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Old 06-23-2013, 10:24 AM   #2 (permalink)
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Front spring but don't heat it, cut it one tun at a time till you get what you need.
RJ

Last edited by R.J.; 06-23-2013 at 10:25 AM. Reason: Spelling
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Old 06-23-2013, 12:23 PM   #3 (permalink)
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Thanks, do I stretch it out to the same length or just cut it a coil at a time.
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[You know you play pump..]When you carry extra 10 rounds just because you love to toss them to players screaming they need more paint.
Dr. VonDeafingson
I typically carry one extra tube and give them 1 ball from it.

I'm an *** like that.

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Old 06-23-2013, 12:42 PM   #4 (permalink)
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I think stretching it is unnecessary, and would almost be as bad as torching it. When you deform a spring you push the metal past it's elastic limit and it won't hold that new shape without tempering it again. Trimming should be all you need to do.

I wish I had known you had a functioning Nightmare, I would have had you look at mine before I sold it.
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Old 06-24-2013, 06:48 PM   #5 (permalink)
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No biggy, I really appreciate the help.
I'm stoked to have gotten it for so cheap, it's a beast.
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Originally Posted by Donkey Oatey View Post
[You know you play pump..]When you carry extra 10 rounds just because you love to toss them to players screaming they need more paint.
Dr. VonDeafingson
I typically carry one extra tube and give them 1 ball from it.

I'm an *** like that.

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Old 06-26-2013, 08:53 AM   #6 (permalink)
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drill & tap for a full spring diameter rear velocity adjuster, use a short set screw for the adjuster and leave it backed most of the way out, that'll give the mainspring another 1/2" or so to compress in, lessening the pressure without damaging the spring. it'll also make the pumpstroke lighter...
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Old 06-27-2013, 04:10 AM   #7 (permalink)
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That sounds like a great idea, but it's a bit too vague for myself, as a total noob to doing... Well, anything of that nature. I know how to tap a hole...
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Originally Posted by Donkey Oatey View Post
[You know you play pump..]When you carry extra 10 rounds just because you love to toss them to players screaming they need more paint.
Dr. VonDeafingson
I typically carry one extra tube and give them 1 ball from it.

I'm an *** like that.

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Old 06-27-2013, 09:19 PM   #8 (permalink)
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another way is to simply give the mainspring a little more room, drill a hole just large enough for the spring in the back block, about 1/4" to 3/8" deep (IIRC the back block on a nightmare's roughly 7/8" long, just stop short of the rear grip screw hole). that way if the velocity's too low, you can always shim it back up with washers...
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Old 06-27-2013, 10:14 PM   #9 (permalink)
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That I understand, and will try it, thank you sir.
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Originally Posted by Donkey Oatey View Post
[You know you play pump..]When you carry extra 10 rounds just because you love to toss them to players screaming they need more paint.
Dr. VonDeafingson
I typically carry one extra tube and give them 1 ball from it.

I'm an *** like that.

My Feedback!
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