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What Are Up With My Nf's Ranges?


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#1 ZACHARIAH

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Posted 25 August 2009 - 07:59 PM

Hello, this my first post so please don't ban me. My nightfinder is cpvc couplered, has an lsfg and dtb spring additions, with a lubed disk shot o ring. It hits a wall forty feet away at the bottom or at knee level. Why is this?

Edited by ZACHARIAH, 25 August 2009 - 08:01 PM.

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#2 Hipponater

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Posted 25 August 2009 - 08:04 PM

Looks like your 26th post...

It could be any number of things. Most likely, your darts are a bad fit for your barrels. Either too small, or too big. Maybe try to change darts or your barrel and see if things improve?

Or, maybe the o-ring is too big (not sure how a disk shot o-ring compares). The plunger head/plunger tube seal is another place too look.
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#3 Lt Stefan

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Posted 25 August 2009 - 08:06 PM

How long is the barrel? How tight are the darts in it?
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#4 ZACHARIAH

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Posted 25 August 2009 - 08:13 PM

Hipponator: I am using mile high foam which is a nice fit. The o ring is a bit of a squeeze. I thought it was my first post for random reasons.

Lt. Stephan: My barrel is 3 in. long and my darts have a nice fit.
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#5 The Kart Racing Nerf Man

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Posted 25 August 2009 - 08:14 PM

I had the same problem with my very first NF. In my case I had the barrel too long. Your barrel should not exceed more than 2 inches off of the front tip. I would also recommend that try shooting the NF with loose darts and tighter fitting darts and see which goes farther. If the tight fitting darts go not far then there's your problem.
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#6 Hipponater

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Posted 25 August 2009 - 08:15 PM

Hipponator: I am using mile high foam which is a nice fit. The o ring is a bit of a squeeze. I thought it was my first post for random reasons.

Lt. Stephan: My barrel is 3 in. long and my darts have a nice fit.


3" might be a little short, maybe try 4 or 5. If the o-ring is tight, it may be slowing down your plunger head. Does it sound slower or anything? Do you have the stock one you can try out with a wrap of electrical tape or something underneath?
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#7 CrackerJak

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Posted 25 August 2009 - 09:25 PM

Your o- ring might be too tight. If the o- ring is too tight, then the ranges will be greatly decreased because the plunger won't move down the plunger tube as fast.
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#8 ZACHARIAH

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Posted 25 August 2009 - 09:34 PM

Hipponator: The blaster sounds a little bit slower. I can't get a longer barrel because I am out of cpvc and when I tried my old Home Depot foam and nothing really changed.

TKRNM: The shorter barrel decreased the ranges and the tighter darts went farther.

CrakerJack: Does it make a difference when you lube it?

Edited by ZACHARIAH, 25 August 2009 - 09:39 PM.

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#9 ZACHARIAH

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Posted 25 August 2009 - 09:37 PM

Your o- ring might be too tight. If the o- ring is too tight, then the ranges will be greatly decreased because the plunger won't move down the plunger tube as fast.


Oops double post.

Edited by ZACHARIAH, 25 August 2009 - 09:38 PM.

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#10 CrackerJak

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Posted 26 August 2009 - 02:42 AM

CrakerJack: Does it make a difference when you lube it?

Not really, it helps a little, but if the o - ring is too big, it will have trouble moving down the plunger tube. I recommend keeping the original o -ring, but put some e-tape under it but not too much.
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#11 ZACHARIAH

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Posted 26 August 2009 - 12:19 PM

CrakerJack: Does it make a difference when you lube it?

Not really, it helps a little, but if the o - ring is too big, it will have trouble moving down the plunger tube. I recommend keeping the original o -ring, but put some e-tape under it but not too much.


That is one of my problems, I can't get e-tape under the o ring. The e-tape slips off.
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#12 flamincows

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Posted 26 August 2009 - 12:32 PM

That is one of my problems, I can't get e-tape under the o ring. The e-tape slips off.


Are you making sure to wipe all of the excess lubricant from the plunger head before applying the e-tape? Also, make sure you stretch it very tightly, and don't use e-tape that is several years old.

Have you wrapped tape around the front of the plunger tube where the two caps that made up part of the AR? You could be loosing air there.
When you dry fire the gun with the barrel plugged the plunger rod should stop or at least slow down a great deal. If it doesn't and you have a good seal between the plunger head and plunger tube, use hot glue, e-tape, and goop to ensure that all cracks and crevices are completely sealed.
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#13 ZACHARIAH

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Posted 26 August 2009 - 12:56 PM

That is one of my problems, I can't get e-tape under the o ring. The e-tape slips off.


Are you making sure to wipe all of the excess lubricant from the plunger head before applying the e-tape? Also, make sure you stretch it very tightly, and don't use e-tape that is several years old.

Have you wrapped tape around the front of the plunger tube where the two caps that made up part of the AR? You could be loosing air there.
When you dry fire the gun with the barrel plugged the plunger rod should stop or at least slow down a great deal. If it doesn't and you have a good seal between the plunger head and plunger tube, use hot glue, e-tape, and goop to ensure that all cracks and crevices are completely sealed.


I have wrapped e-tape on the two caps. My e-tape is new and how does stretching e-tape help? When I plug the barrel it slows down a ton.
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#14 Lt Stefan

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Posted 26 August 2009 - 01:56 PM

That is one of my problems, I can't get e-tape under the o ring. The e-tape slips off.


Are you making sure to wipe all of the excess lubricant from the plunger head before applying the e-tape? Also, make sure you stretch it very tightly, and don't use e-tape that is several years old.

Have you wrapped tape around the front of the plunger tube where the two caps that made up part of the AR? You could be loosing air there.
When you dry fire the gun with the barrel plugged the plunger rod should stop or at least slow down a great deal. If it doesn't and you have a good seal between the plunger head and plunger tube, use hot glue, e-tape, and goop to ensure that all cracks and crevices are completely sealed.


I have wrapped e-tape on the two caps. My e-tape is new and how does stretching e-tape help? When I plug the barrel it slows down a ton.


Wash the pieces of the piston in dish soap. Then take a knife and make a slide of e-tape that is as thick as the gap in the piston (plunger head). Wrap it around, pulling tightly as you go, to ensure that it sticks. Put the o-ring on. You want a air- tight seal, but with lube, you want to be able to easily push the plunger up and down the plunger tube. Also, you might want to try adding a second o-ring. They can be found at HD. There is one (I forget the number) that is the exact size of the NF o-ring.

And with spring powered guns, the tighter the better (dart-barrel fit). But not too tight.
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#15 ZACHARIAH

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Posted 26 August 2009 - 05:18 PM

Thank you Lt. Stephan.
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#16 Lynx

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Posted 30 August 2009 - 03:22 PM

Pro-tip: Use the stock o-ring with 2-3 layers of e-tape below it.

Proven, extremely effective, easy. A second equal size o-ring would help.
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