Hey guys, I received my Notos and am having a lot of fun with it. I have a question. If I fill the gun to 3500psi, turn the hammer spring screw all the way in and take 5 shots with 14.3gr Crosman Premier HP pellets I get an average of 770 fps. If I refill to 3500psi and take five more shots with the same pellets but turn the hammer spring screw out 1.75 turns from full in the avg is 761fps. If I do all the same again and turn out the hammer spring screw all the way out which is 3,5 turns the avg is 751fps. According to the manual the fps should drop way way more that I am getting when I turn the hammer spring screw out. What am I missing?
N/A Notos FPS
- Thread starter dave70
- Start date
The Notos is oversprung but balanced from the factory. In order to find the knee, you would have to replace both the hammer and valve preload springs with lighter springs.
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What does it mean where the manual says each turn of the hammer spring screw out should reduce the fps by 150-200. Thanks for taking time to educate me. 
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What does it mean where the manual says each turn of the hammer spring screw out should reduce the fps by 150-200. Thanks for taking time to educate me.
That may be what they say in the manual but there are few reports of large dropps per turn.
Swap out the hammer spring with a softer one and see what you get across the spring compression range.
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it's a
I never tried adjusting mine.. figured it was ok as is.. but I didn't get the 780 fps like the box said..I think it was about where you said.. good enough for me but interested in hearing how it goes with the lighter hammer spring.
Mark
good gun.. I did a little testing on my notos and found it looses a little bit of fps with jsb jumbo monster redesigned 25 grain pellets but shoots a lot harder.. I mostly shoot crossman premier hollow point 14 grain pellets and it shoots well with those.. I can get 4 magazines but the last couple shots seem just off the regulator..
I never tried adjusting mine.. figured it was ok as is.. but I didn't get the 780 fps like the box said..I think it was about where you said.. good enough for me but interested in hearing how it goes with the lighter hammer spring.
Mark
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Does the Notos HAVE a regulator ?? For some reason, I was of the impression that they did not. Neat little rifles though !!
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My notos I had was a laser beam with baracuda 21.14 pellets in 5.52mm
They were averaging 666fps, which I found ironic. 20 fpe ain't bad out of a gun claiming only like 12 or 14 fpe.
They were averaging 666fps, which I found ironic. 20 fpe ain't bad out of a gun claiming only like 12 or 14 fpe.
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yes it is inside the air tube right where it screws on the body.. same as the pelenium.. they are inside the air tube..
now to shorten my air tube so I can make it 12" overall like the attaman ap16 compact.. yes I figure I'll only get 2 magazines instead of 4 worth of shots but I really wanted more compact..
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Is there anybody doing the after market up grades on the Noto? What do you get and what do they charge? I see where Firewalker says $600 parts, is that installed? If you run a cottage industry send me a PM with the info. Really like the Notos but it is a little crude and the tank is a little small. I have the trigger about right but the safety doesn't work.
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That would be me, Bill. Shoot me a PM and we'll talk.
$600.00 was everything you see including the gun but not the scope. It's a prototype series I'm working on for c88machining.
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I think the Umarex Notos is great for target shooting and plinking.
Out of the box you get about 28 shots (4 magazines) int the 740-770 FPS range with CPHP 14.3 grains.
With just a weaker hammer spring you can get:
-100 shots at about 480-500 FPS with CPHP 14.3 grains
-50-60 shots at about 600-640 FPS with CPHP 14.3 grains
It is the perfect plinker or backyard shooter.
Why do people want to increase the power on the Notos when there are already so many powerful air guns?
Just buy one of the more powerful PCPs.
I only wish that the Notos also came in .177 caliber.
I could shoot 100 shots for $1 at 600+FPS with 7.5-8 grain pellets.
Out of the box you get about 28 shots (4 magazines) int the 740-770 FPS range with CPHP 14.3 grains.
With just a weaker hammer spring you can get:
-100 shots at about 480-500 FPS with CPHP 14.3 grains
-50-60 shots at about 600-640 FPS with CPHP 14.3 grains
It is the perfect plinker or backyard shooter.
Why do people want to increase the power on the Notos when there are already so many powerful air guns?
Just buy one of the more powerful PCPs.
I only wish that the Notos also came in .177 caliber.
I could shoot 100 shots for $1 at 600+FPS with 7.5-8 grain pellets.
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