Reply To: Can spring piston air rifles simulate the recoil of a firearm?
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We are not saying the same thing. The initial recoil is rearward. That is abruptly halted when the piston stops it’s forward motion at which point the gun moves very slightly forward. This can be seen in the video you linked. You can’t see any rearward motion at 1:31 in the video because the butt of the gun is on the ground. It can’t move backward. Suspend the rifle in a horizontal position and you will see that the gun kicks to the rear first. You can’t argue with the laws of physics. See this video at 1:31 As soon as the trigger releases the piston there is a strong forward action of the spring and piston which causes an equal and opposite action on the end of the spring that is solidly against the trigger housing. This causes the rearward recoil. It is the sudden stopping of the piston that causes the hard impact on a spring gun. This sudden forward force causes all the movement of the gun and causes the scope to want to go rearward.
Here’s another video that clearly shows at 2:08 the initial rearward recoil due to release of the spring/piston and then the forward movement and vibrations due to the piston coming to a stop.