Lone_Gunman
Member
Can someone explain this to me as it applies to full autos?
Wouldn't lock time suck as well?With all the mass of the bolt essentially "slam firing" the gun at a rapid rate, open bolt submachine guns can be quite a handful to control.
That's "advanced primer ignition" (API). Many open bolt submachineguns work that way, but they don't have to. It allows the bolt to be lighter since the cartridge case has to overcome not just the inertia of the bolt and the force of the recoil spring, but also the forward momentum of the bolt, before it can start to back out of the chamber. Many blowback submachineguns don't use it, particularly guns with hammers and floating firing pins.Just before the bolt is fully forward, the firing pin hits the primer and ignites the cartridge.
PTK said:Generally, unless use was expected very soon, they would be carried with the magazine in and the bolt forward, safety on.
Mikkowl said:Also, I'm pretty damned sure the Thompson SMG was a closed bolt design, only changed later in regards to make it cheaper to mass produce.
Wouldn't lock time suck as well?
And well it should have.The dust cover has a bracket that locked the bolt when it was closed.
The M3 and M3A1 only fire full-auto, but the rate of fire is so slow that it's not hard to firing single shots through trigger manipulation.Some of these weapons can't even do single shots.