Just logged on again for the morning visit, and see this is still going, so used Bryan Litz's Point Mass Ballistics Solver to run some numbers. For the 7mm Magnum I used the velocities for the 168 and 180 VLD's quoted by Tanner, 3000 and 2800 fps respectively, and for the 150 Long Range Ballistic Tip used 2950 fps, because that's what I easily get from the 23.6" (60 cm) barrel of my very accurate CZ 550 .270, using H4831.

The wind drift numbers are for Standard Atmosphere conditions:

180 7mm VLD @2800--- 300 yards 4.6"; 500 13.4"; 800 37.4"
168 7mm VLD @3000--- 300 yards 4.4"; 500 13.0"; 800 36.4"
150 .270 ABLR @ 2950-- 300 yards 4.5"; 500 13.3"; 800 37.2"

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck