Umarex Notos cocking got gritty

[88turbocoupe]

Strange thing happened yesterday went to shoot the notos and noticed when trying to cock 1/2 way through the cycle it started feeling gritty
Found some pellet debris
But still little gritty
Cleaned up did some polishing
what I notice is from the tension from the hammer spring when cooking causes that bolt to slightly cock and drag on the top and bottom
No galling anywhere strange it was fine couple days later and this
Anyone else run into this issue ?

 

[Rizz01]

Mine has been gritty since it came out the box but works flawlessly.
Mr. Firewalker can provide more helpful info on this subject......
Good luck!

 

[graycrait]

Mine has felt like pulling through gravel since it came out of the box. Functions fine and shoots straight but truly feels like a $200 PCP

 

[88turbocoupe]

well, found another issue with this
if you look in the picture above that little pin in the cocking lever works its way up and skins the screw holes i found.
needless to say, a small peen took care of that
i also used high pressure black moly grease and skimmed the bolt n bore
now it's back and smooth as butter real smooth, that silicone grease it don't work for this to well but the 5% moly sure does.

 

[Gerry52]

Try graphite.

 

[Perle]

I’ve got my second one. First one was tuned up by Firewalker( silky smooth ) the new one has a polished barrel and some tirigger work.
The second one is a little gritty but smoothing out with use

 

[graycrait]

I guess I'll just shoot my S200 and Streamline until I feel like dismantling the Notos and getting the Flitz out. I've got a pair of "$200" PCP rifles, Notos and Stormrider, both need to be dismantled, "adjusted" and smoothed out.