Can anyone tell me how they came up with the figure of 12ft/lb for the limit for air rifles not requiring FAC.
Whats the difference between 11.9 and 12.1? 1n terms of power?
Can anyone tell me how they came up with the figure of 12ft/lb for the limit for air rifles not requiring FAC.
Whats the difference between 11.9 and 12.1? 1n terms of power?