"By max point blank range, I'm assuming you're talking about a 200 yard zero and over level ground? There have been too many stories in the newspapers about bullets "threading the needle" and hitting a bystander out of sight of the hunter to take the 600 yard limit as an absolute."

200 yard zero would be a good est. but depend on the bullet. Again you can check with the Bal. Calc. to see a bullets path.

You can't "thread" gravity, but I suppose if your mountains
are less than 600 yards apart, you could shoot over a mountain
holding the rifle level while standing on a peak.

In any case, wearing orange isn't going to protect you from
a bullet shot a mile or more away.

And I would never get close enough to shoot turkeys with either a bow or a shotgun while wearing orange.