Apols if I state the obvious in some of my response, but it might be useful for some of the others as well.highsea said:
caveat. I am limited by what I can say.
Test weapon was based on a model 98 turkish mauser (probably the best bolt action mechanism made IMHO). It was used as the mule for a sniper weapon test
Recoil is managed at 3 levels, felt, lift and torque.
The floating breach is for felt management
evacuator is for lift management
crown modification is for lift and felt management
middle evacuator is for torque and lift
the floating breech movement is in milliseconds. the breech shape, chamber shape is computer designed so as to take advantage of a preferred propellant mix.
As soon as the round is expelled, there is no loss in reaction time or mechanical time to load up and fire again. It's the same as a conventional system.
It's designed for large subsonic rounds fired in an urban environment. It has been used in test environments where the general public didn't even hear the discharge. This is on a NATO std 7.62mm FMJ.
Interestingly enough, one of the evacuator/silencer models has now been picked up for use by some US specfor operators as personal pref items.