Learn how to measure the cocking effort of your spring-piston rifle. It’s important for you to know this, and we show you how to do it.

Pyramyd Air Blog
Learn how to measure the cocking effort of your spring-piston rifle. It’s important for you to know this, and we show you how to do it.
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Tony – That’s a good explanation of a potentially mystifying subject.
But as a mechanical engineer, I have a concern: the scale measures only the vertical force exerted, and in the video, the way the rifles are held, there is a substantial horizontal component of the cocking force, which will try to slide the scale sideways (prevented by the rubber feet) but which the scale will not register, so the measured force is incorrect and may even vary from one time to the next, depending on how the rifle is held relative to vertical.
As a way of checking the consistency of the cocking force, your method is fine, but to compare the measured value with, say, a published spec, or some other owner’s measurement, may show some differences due just to how the rifle is held, even when the actual force is the same.