Most of the loads I shoot I have checked out to 200 yards at the range. So far the ballistic charts I run are very close to the actual results, usually within an inch or less. Due to the cross checking I have done I feel relatively confident in the ballistic tables I use. I still prefer to shoot at the different ranges to verify them. I also find that the 300gr bullets seem to be the better choice for the longer ranges some want to shoot due to the retained energy of the heavier bullet. The trajectory is not that much lower but the energy stays longer for a better terminal result. Of course other peoples oppinion will differ but that is my 2 cents.