When we (my kids now adults and I) are getting ready for western hunts the guns that go have to produce 3" or less at 400 from a bi-pod on an easy wind day to make the cut. That is done with 3 - 3shot groups each starting from a completely cold barrel on the same target. Once the load is proven to be consistently capable of that standard we can make a good decision on shots at game taking weather conditions and available shooting positions into account. We only have consistent access to 600 yard shooting so we are all pretty much 500 and in hunters. This has worked pretty well. We have filled a lot of tags from 300 to 500 yards and not lost an animal and really have not even had any difficult tracking jobs. My kids all started hunting west with me as soon as they had hunter safety.