According to a nonlinear hysteretic piano hammer model and in reality , the duration of contact between the hammer and the string decreases with the increasing of the striking velocity
of the hammer.
One problem with lead-free bullets in general is that while they do expand nicely under some (skeptics might say perfect) conditions, they are quite fussy about the striking velocity
that provides the very best performance.
Helmer's steady hand, including astute use of CGI, keeps things moving with striking velocity
This paper addresses the wounding potential and power of a soft-nose bullet at the striking velocity and the remaining velocity when fired through glass of various thicknesses.
To measure the initial striking velocity, the bullet was fired through two aluminum foil screens placed 60cm apart that were connected to one of the timers.
Remaining bullet velocity becomes a function of its initial striking velocity as well as the thickness of the glass.
Because the striking velocity
was at about 30 mph and the change in velocity was about 43 mph, this indicates that the subject vehicle was pushed backward at about 13 mph after the accident with the other, larger vehicle.
The liquid lubricant and bore conditioner already has a lot of good press, mostly from handloaders who claim some pretty striking velocity
to all striking and residual velocities where striking velocity
was greater than or equal to the lowest complete penetration velocity.
Similar negative effects can be caused by incorrect rotation or the wrong striking velocity
in the piston.