In some of my rifles I know it all too well. Some not so much but often this is of no concern as the distance I would shoot those is well within 'aiming on hair'.
My .204s I shoot thousands of times a year at multi-distant prairie dogs, yes I pretty much know how to compensate for those out to about 450 yds. or so, I tape that info to the scope. My .300 Win mag is my longdistance big game getter and out to 500 yd. I have it taped to the scope.