I think for a serious system efficiency is the primary issue with blowback. There just isn't enough air pressure overhead to vent any pressure behind the pellet; the losses are unacceptable to most.Tom
The FX Revolution uses a blowback system right?
I think some definitions are necessary:Blowback is defined as using chamber/barrel pressure to overcome the bolt closing spring force to cycle the action. Blowback systems have no battery locking mechanisms, they just overpower the spring that closes the action. This is why they are generally found only on 22lr and some very low power pistols like the 25 acp and the 9mm largo. These cartridges are not so powerful to overcome the bolt closing force prematurely but one that has enough residual gas pressure to operate the action. Blowback is the simplest of all autoloader designs.A system that uses a gas pressure to push piston that unlocks the bolt, then uses residual gas pressure in the barrel to cycle is referred to as Gas Operated.A system that uses the inertia of a sliding barrel or other action component to unlock the bolt, then uses residual gas pressure in the barrel to cycle the action is referred to as Recoil OperatedThere are a few systems that use a gas powered piston as a slave to cycle the bolt without residual gas pressure from the barrel, these are generally considered Gas Operated too.The FX and Huben are not Blowback designs. There simply is no extra gas to loose in an Airgun for a blowback system. My opinion of course.Tom
rkr, does the Steyr auto index the magazine or is it manual? Not any around here.Tom
they all use air in some regard.. theres no other source of energy onboard.Theres no other option