Originally Posted by jpattersonnh
What would you consider "flat" at 600 yards? a 6.5x39 is a short cartridge. You hear that it has the characteristics of the 6.5x55, but really comes no where close. 400 yards it is a vg cartridge. 300 it is excellent. http://www.65grendel.com/faq.htm
Perhaps I didn't ask the question clearly. What I was trying to say was that the ballistics data I have found for 6.5 Grendel has been based on a 600 yd zero, which comes from its intended use in long range target shooting. For my purposes (300 yd), I am looking for ballistics data based on a 200 or 300 yard zero. By zeroing the 6.5G at 600, it ends up with a rather large mid-range vertical divergence from LOS.
I was not comparing the 6.5G to the 7.62x39, which has a very loopy trajectory and loses considerable KE after 300 yds. The two start out with approximately the same KE, but the 7.62x39 energy at 300 yds is on par with the 6.5G at 500 yds.