Originally Posted By: Stan
I've put the recoil operated A5 and M11 style guns to the test for years, exclusively. The 390 is superior in reliability, and other ways, too. Not the least of which is recoil attenuation.

Can you name a recoil, or inertia, actuated semi-auto shotgun that the US military ever adopted? Wonder why.

SRH
Stan, Im pretty sure the A-5 was indeed used in warfare, even by the US (e.g., WWII, Vietnam). Not sure what is specifically meant by the term adopted? Nevertheless, the A-5 has stood the test of time. Has the 390 stood the test of time like the A-5? Also, I think you are talking about perceived recoil rather than recoil attenuation, since energy is energy, its just changed with time depending upon the recoil mechanism, but its not attenuated, or lessened. The amount of energy in terms of recoil is the same no matter the action. BTW, I think SBE guns are pretty nice too, except they dont like light loads. 390s are good guns too, I just dont see the superiority part....sorry.