Long Range Practice Tip
This is tip that many probably already incorporate into their program but I'll post it anyway.
This is the scenario: You're stuck at a certain yardage that you just can't get good, tight groups at, say it's 40 yds just for the sake of argument. Do you just keep plugging along at 40, trusting that they'll get tighter with enough practice? I've done that and it seems frustrating and usually takes a long time before the groups shrink.
What I tried may go against logic, but that is to drop back another 20 yards (a total distance of 60 for this example) and practice. Naturally your groups won't be too tight, but that's not the goal. I would then move up to 40 again and PRESTO, much tighter groups than before. I've used this all distances and it works for me.
When that buck steps out at 20 -30 yds, it'll seem like a chip shot compared to how you've been practicing. Give it try and see if it works for you.