here in nc if a power line or rail road runs thru or near your property you dont own that land the rail or power co. does.
I hunt gamelands and it is close (100 to 200 yds away)to private property if i shoot one on gamelands and it goes back to the private land i have the right to retrieve that animal as well as that is my duty to finish what i started
Here in ny, you still own the land - the company has a right of way and cannot grant rights of trespass.
You cannot go on private land without permission for any reason including game recovery.
Every state is different - don't know of any that allow you to shoot across property lines and then recover.
Steve