I too say the right hand case is the fired round but I would not say that the left hand mis-fire is a soft firing pin strike because as Rule303 has pointed out the misfire has not had the pressure to flatten the primer against the breech face and form the pin indent as it has on the fired case. The left hand case has received a good pin indent. Misfires I have seen caused by weakened springs or worn pins usually show very shallow indents, or in rare cases of a hard primer still show the same shallow indent.

Whichever is the misfired round it has definitely received a good indent and should have fired. I would be very concerned that this has happen to dangerous game factory ammo.