We can not judge the intent of the shooter, only where the bullets impact.
Pistols, No call, 5 KD's, all down, no misses on the dump.
The OP does not specify which rifle target was knocked down by the pistol round.
Rifle, misses #4, how can anyone absolutely know the shooter was aiming at #4? Maybe they were aiming at number 9 and missed really badly? (IM my head I am saying #9 was the one knocked down by the pistol) So they missed #9 really bad, went back and shot 4,5,6,7,8,and 10 thus all KD's are down.
No Miss, No P.
Now go set some targets. Next shooter.
In the writing of the stage, more clarification could maybe be used for the rifle string, like "sweep the 10 targets left to right one round on each" then a reengagement of the 4th target with the 5th round would be a P, but the OP instructions did not have that amount of detail.
As a stage writer, we need to be clear with what we want a shooter to do, or not to do. Use just as many words as you need, not more, not less.
This one sounds fun, I would like to shoot it, with or without more clarification.