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Old 07-06-2017, 09:47 PM   #4
Badmoets
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Join Date: Feb 2016
Location: Fryslan, the Netherlands
Posts: 52
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Hi Dave,

last scan was ok, next one is in september. We`ve got a great summer ahead of us.

Been jerking around with the Kral. I have made a new hammer for the gun with a M4 thread in it at the front. Since the valvestem is 5 mm in diameter the 4 mm pin on the hammer should open the valve further and longer. The original hammer has a 9,4 mm hole in it, the hammer spring is some 9 mm too so that fits pretty neat. The soft hammer spring doesn`t do the tric. The travel of the hammer is shortened through the 4 mm pin at the front side. So i made the hole in the hammer 10 mm, i had a hammer spring that stiffer. That did the trick. The V0 of the gun is now 867 fps.
The hammer.


Good enough to perform good at 50 meters you would say. Here are some groups at 50 meters.
this is at 1885 psi (130 bar)


This one is at 2030 ps1 (140 bar)


And these are at 2320 psi (160 bar)




This is the best group so far.


Gonna clean the barrel very securely tomorrow. See if that makes it a bit better.

Best, Badmoets
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