If you open the corresponding realdrums text file at the bottom you will see what they are, some have individual hits and some are combined.
The bold is the bar number if you drag into RealBand with the tempo set to that of the wav and the bar offset set to -2 to allow for the 2 bar count-in, in a DAW set it to -1 offset:

Shot,1,41,-1,349,3,110 ;kick
Shot,0,41,-1,349,2,110 ;kick
Shot,1,41,349,250,4,100 ;snare
Shot,0,41,349,250,3,100 ;snare
Shot,1,42,120,777,1,80 ;crash and kick 1
;Shot,0,42,120,777,1,80 ;crash and kick 1
Shot,1,43,418,774,2,80 ;crash and Snare
Shot,0,43,418,774,1,80 ;crash and Snare
Shot,1,45,233,405,7,90 ;crash2 and kick
;Shot,0,45,233,405,7,90 ;crash2 and kick

Like patterns, shots are also defined in the text file using lines of text containing several elements: 1) the text "shot", 2) type of shot (0 for shot or hold, 1 for pushes), 3) the bar number of the shot in the style wave file, 4) the number of ticks (1 beat = 120 ticks) before or after the bar number the shot occurs, 5) the duration of the shot in ticks, 6) weight, 7) volume of the shot

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