I guess my take is guys who can shoot can shoot with whatever rifle they happen to be using. Ballistic coefficients don't mean much until ranges are way over 400 yards. My little elk hunting group practices at a 1000 yard range from hunting positions and the guy shooting a 300 Win mag manages to hit the 600 yard gong without turrets a special reticle or super BC billets or a Kestrel but he does use a rangefinder. Knowing your trajectory from lots of practice matters more than trendy cartridge selection.
The guy shooting a 308 Norma with CDS tops out at 500 yards for reliably hitting targets from field positions. His marksmanship limitations don't seem to be a big problem because he kills one or 2 elk along with a few deer most years.
I've never killed anything as far as 590 yards but I did put 2 180 grain TTSX bullets from a 300 Wby through the same exit hole on a large cow at 550 using a Z800 reticle on a 3-15 Conquest. Yes I practice all the way out to 800 yards every year and have a target at 490 yards at home that gets frequent use with lots of rifles. There really is no substitute for practice and familiarity with your gun......if you are afraid of 30-06 recoil and think your Creed is a magic death ray- use it. If you are a capable rifleman or rifle woman for that matter use a more appropriate tool for the job.
