leadcounsel
Moderator
At my range at night with the overhead flood lights i can see 9mm and .40 fmjs out to past 100 yards.
Artillery nearly doubled in the early 80's ..... I think there was a correlation there .......
If you sit beside a shooter and watch thru a spotting scope, you can see 'em easier. Experienced this phenomenon years ago while helping my son sight in a new .45 Colt revolver. Could watch every shot virtually from the barrel to the target. It works well if you are shooting at reactive targets and want to know where you are missing.