Well, using the po-man bathroom scale (digital) method...

December 7 2017 at 12:43 PM
Phil  (Login Duane30)
YF


Response to I would want to know the closing force on the pump lever,

...the weight of the gun reads about 10 pounds equipped. Pushing down on the lever to pump peaks at 51 pounds. This is giving me slightly over 600fps in 14.3 CPs. Just enough punch to take rodents out to 40 yards and more, yet nice and flat trajectory for my given shooting distances.

The springs, though not Belleville, require 500 pounds to fully compress just shy of coil bind (Chevy small block valve springs).

If all the aforementioned theory is applicable, I am chasing a fools errand. The spring and piston certainly weigh more than a pellet! Sure it may do what I think it will, but will not respond fast enough to chase the air charge out. sad.gif
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