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-   -   nelspot anti-rollout detent (http://www.mcarterbrown.com/forums/pump-markers/231456-nelspot-anti-rollout-detent.html)

rogalxxx 04-16-2013 03:51 AM

nelspot anti-rollout detent
 
Hi
I just moded my nelspot. Not sure if this was done before.
I drilled the front screw all the way thru and fitted an ego detent so it sticks out just enough to block the ball in the barrel. Haven't shot it yet but it does it's job pretty well. I'll review the method after i shoot the gun.
pics:
https://lh6.googleusercontent.com/-X...415_210215.jpg
https://lh6.googleusercontent.com/-A...415_210149.jpg
https://lh3.googleusercontent.com/-i...415_210229.jpg
https://lh4.googleusercontent.com/-B...415_210411.jpg
https://lh5.googleusercontent.com/-c...415_210107.jpg

blackrain 04-16-2013 04:09 AM

That's a pretty good idea. Let us know how it works :D

Later,
Blackrain :)

rogalxxx 04-16-2013 04:20 AM

now I have to figure how to shoot it over 200fps :P It's a german "F"-stamped version so I guess was set very low from the start. Tried to change mainspring to red but not too much increase in speed. Could it be that valve spring is too soft?

rogalxxx 04-16-2013 04:21 AM

https://fbcdn-sphotos-c-a.akamaihd.n...46482181_o.jpg

blackrain 04-16-2013 04:35 AM

Drop in a red valve spring and work thru the bolt springs. I normally used a red valve and a Blue Main. What size tube do you have? #0 stock?

Later,
Blackrain :)

rogalxxx 04-16-2013 04:38 AM

not sure what powertube-I'll post pics after I get home. where can I get nelson valve sping kit? or should I use cocker valve kit?
edit: just checked at bacci's and it's a stock powertube.

rogalxxx 04-17-2013 03:27 AM

seems to be working fine. I also changed my mainspring to stock phantom one and it shoots a lot better. not sure if over 250fps cos i don't have a chrono


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