I purchased a Barska Swat 10-40x50mm mildot scope. It appears to be a sfp type scope.Ranged it out on a dollar bill at 83 yrds on low power which gives me 2 mils from end to end. Ranged at full zoom at same distance and target, gives me 4 mils to center.My Nc math says, that at full zoom the mildot value changed from 1 to .25 at full zoom. With those of you who range targets this way is this a burden or an asset? I feel it is both, since I will only be able to calculate 1.5 mils at full zoom but it will be easier to calculate them in .25 increments. I throw it out for debate to those with more experience in this area.