Originally posted by JoeyMetropolitan
What keeps the firing pin from hitting primer?
If you drop the Mini 14?
Looking at my Mini14, I see how the hammer is held in place when safety is on.
But I can't see how the firing pin is blocked.
I have read else where that it is blocked.
The firing pin floats and will lightly tap the primer every time it slams home a fresh round. It can dimple a soft primer. The firing pin is floating and inertial, and is prevented from firing out of battery by the firing pin tail being captured [blocked] by the safety bridge, which prevents contact until you have lug engagement. It is NOT blocked when it is in battery, but will not have enough inertia to fire it if dropped.
The safety bridge has a helical cut to retract the firing pin as soon as the bolt rotates out of battery. It's a safe system if everything is in spec, and the firing pin tail is intact; without the tail, the rifle is dangerous and should not be fired.
This design has been around since the 1930s, and has been installed on what, 5 or 6 million rifles (or more?). If there were a problem, we'd know about it, and it would have been resolved 5 million rifles ago.