I finally figured out a place to shoot a hundred yards on my property. No clue why I didn't see this before. I've walked it a hundred times over and it never occurred to me. I guess it was just one of the "V-8" moments.
The line of fire drops off about 10 feet. That's only a 3% grade, so I figure that's negligible. I can drive between the target board and bench in the truck, too. We like that!
HERE'S THE PHOTOS.