My bro and I are trying to stretch out the known and tested trajectory for his .338 win mag. We went to the desert and shot a 12" sq gong repeatedly at 500, 600 and 700 yards so we are very close to the numbers listed below for those ranges. the distances of 100-500 yards were shot and measured on paper so those drops are a little more accurate still. But for some reason I can't get any ballistics program to come close to what we are observing. Consequently I am unable to put together a decent drop chart for him so if he sees his elk at say, 638 yards we don't have a good number to click to on the scope. It would be a huge help if someone would email ( firstname.lastname@example.org ) me a drop chart in 20 yard increments with a 100 yard 0 and a 10 mph full value cross wind that makes some sence of the drops we gathered in the field. If it is not too big of a pain itwould be very appreciated if the chart also had drops at 4000 feet elevation since we will be hunting at that altitude even though we tested at 2800 feet. Cal .338 Weight 250 gr Sierra sbt bc..565 @ 2500 fps and above .563 between 2500 and 2000 fps .550 between 2000 and 1600 fps .537 @ 1600 fps and below MV averaging 2575 Scope height 1.625" Altitude tested 2800' Temp 60 deg Drops we used in moa rounded to 1/4 moa 100=0 200=2.25 300=4.5 400=7 500=11.5 600=16.75 700=19 Thanks for your help.