Nope Sierra makes a 300 grain match king. It has a sectional density of .375 and a BC of .768.
It can be hand laoded and fired from any of the 338'sI listed at 2800+fps.
Well yeah.. I mean look at the most popular round the 338 Win Mag..
At 500 Yards the 270 WSM with 150 Grain bullet has more Speed, and Knockdown power and is flatter than the 338 Win Mag..
270 WSM at 500 Yards 150Grain- Speed = 2213 Energy = 1631 Drop = -34.7
338 Win Mag at 500 Yards 180Grain - Speed = 1950 Energy = 1520 Drop = -39.2
So yeah.. I would use the 270 WSM. In fact, the 270 WSM is ballistically better than all of the others listed at 500 yards.
We are talking about long range. 500 yards isn't long range. To some, myself included,it is much farther than we would shoot but it isn't truely long range. 500 yards is at the very beginning of true long range. And since we are talking about real long range you can throw the .338 win mag right out the window. See my first post.
A 150 grain,Hornady SST.270 bullet fired at 3100 fps will have 1100 foot pounds of KE left at 800 yards and 810 at 1000 yards.
A 250 grain, HornadyBTHP .338 bullet fired at3000 fps will have 2200 foot pounds of KE left at 800 yards and 1750 at 1000 yards.
The same bullet fired at 3100 fps will have 2375 foot pounds of Ke at 800 yards and 1900 at 1000 yards.
Watch the videos, this is long range hunting and if you are targeting elk you had better have a heavy bullet fired at high velocity so that ithas enough retainedenergy when it gets there.
http://youtube.com/watch?v=cCyTRzL5AAQ
http://youtube.com/watch?v=Ssh8Vsbvn2A&feature=related
http://youtube.com/watch?v=_6rKgL75POo&feature=related
http://youtube.com/watch?v=np3NthiI-VE&feature=related