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Upgrading Spring/Brass Barrel


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#1 SeniorXJ

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Posted 22 October 2019 - 03:43 PM

I'm modding an old Nightfinder and I have removed the AR, brassed it with 7/32 and increased the seal on the plunger. When I went to put in a bigger spring it actually shot worse and had less power. I know the barrel length can have something to do with it but I can't figure it out.

What I do know is that it's not air tight and I believe the tube flexes under the pressure as there's no other way air can get out. At the moment I have the stock spring thats stretched out and a 2nd weaker spring. I'm using mostly worker stephans and in it's current form, it will fire through a scar barrel. With the [k26] all darts would get stuck.

Any help would be appreciated!
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#2 meow121325

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Posted 23 October 2019 - 08:10 AM

where would the darts get stuck at? the scar barrel? cause if so then you might have it too tight


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#3 SeniorXJ

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Posted 24 October 2019 - 12:20 PM

where would the darts get stuck at? the scar barrel? cause if so then you might have it too tight


I was using the scar barrel as an example. With a stockish spring it will shoot a stephan through a worker scar but with a [k26] it won't. I don't understand why!
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#4 Meaker VI

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Posted 03 November 2019 - 10:45 PM

Might be too short of a standard barrel; I could see the stock spring delivering pressure slowly enough that the dart gets more power than a heavier spring slamming the PH home before pressure developed behind the dart. That's a pretty out-there explanation though.


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