Re: Question cause I'm illiterate at maff....
I'd take a little different approach to that calculation.
Assume a standard atmosphere, BP 29.92", 59 degrees F., RH 78 percent.
For the 190 grain Matchking on such a day, my ballistics program calculates that the terminal velocity at 100 yards is 2720 fps.
For the 168 grain Matchking, the terminal velocity is 2452 fps.
Therefore, the average velocity for the 190SMK is 2810 fps, and the average velocity for the 168SMK is 2551 fps.
Therefore, the travel time for the 190SMK is 106.8 ms. The travel time for the 168SMK is 117.6 ms.
So, the 190SMK arrives 10.8 ms sooner. You'd really need integral calculus to calculate precisely how far that 168SMK travels in its last 10.8 ms, but just using the terminal velocity times 10.8 ms will give you around 26 feet 6 inches or so. So, that's <span style="font-style: italic">about</span> how far away the 168SMK is when the 190SMK arrives at the target.