It's nice to have your own place with land to shoot on, I count myself fortunate to not have to rely on public ranges, WMA's etc.
Once you establish everything is good to go I think the etiquette varies, depending a little on how close people are, the type neighbor you have and maybe take into consideration what you're shooting. Generally in the middle of the day, weekends especially in a lot of places you would be fine doing whatever you want. Around here a big thing is are you in the "city limits"? If you're not there's not a whole lot to discuss, unless you're being unsafe. Sounds of gunfire is common all around where i'm from, especially if it's a nice day.
Here's my situation.... If you're standing in the middle of my land looking at the targets there's a close-ish neighbor on the right side of the property. They are around 5-600 yards away. The other neighbor to the left is probably about 3/4 mile away. My property is a long rectangle/strip, I shoot longways, not across the short section. In the direction i'm shooting, I can't even give an educated guess on the nearest house behind my backstop. I'm shooting into a natural "berm" that runs across the property where they put a pipeline in forever ago. Anyway, the closer neighbor sometimes will work late hours. I've figured out his schedule somewhat but obviously don't know the day to day. If I go out early in the morning, I may start with a 22 or something suppressed. Going up to normal non-magnum handgun calibers, not much to say there. But, I will give them a heads up if i'm bringing something out thats really going to make some noise. Think along the lines of 257 Wby, 300 RUM, or the 30-06 you mentioned in my opinion fits that category. To me it's more about taking a good neighbor into consideration than asking permission. Seems like
@ATLDave has it figured out.
The guys on the opposite side shoot at all times, even later at night than I think they should. They have had L.E. called on them for disturbance because at times it's gone close to midnight, 'high powered rifle' sounding type stuff. My understanding from the person that called is that the officer that checked it out said they were being reasonably safe but they were "advised" to shut it down before it gets much later. These guys usually don't get any sort of notification from me.