Intently please keep posting.
Well then...
This is what i should have done in the first place, i took a look at the recording of a 9mm handgun i found on youtube.
So, this is not realy reliable data but i will take that as a first starting point:
That is a spektrogram of one shot, more white blotches meanslouder, the higher up the blotches are the higher the frequency.
There is a decaying amount of high frequency content and, for this recording, it seems that a focus on the 1.5Khz region seems to work well.
On the other hand, we start of with a decent amount of high frequency content, that could indicate that if i were to focus on the higher up ones, i would get a better dynamic range.
But... the frequency response of a typical electret capsule is far from linear, they all start to increase sensitivity around 10Khz.
That on the other hand could be the reason the spektrogram of the above shot looks like it does.
I tried ploting the frequency response of my measuring microphone, but i can not get this to work, this is what a typical electret capsule looks like:
https://www.gearslutz.com/board/attachments/remote-possibilities-acoustic-music-location-recording/185100d1280435602-omni-capsule-question-dpagrid.jpgThe compensation file for my measuring microphone shows a peak of 10dB at 10Khz.
If this is good or bad... that could maybe used to my advantage.
Echo is a problem and the high frequency decays *MUCH* faster, wich is good.
The best course of action for now would be to select a random capsule, build a preamp for it, take it to the range with the notebook and take a few measurements.
Along with my calibrated measuring microphone and the other uncalibrated ones i have to get a comparison.