That makes sense. I hadn't thought that all the way through. My scope is a couple of inches higher than the muzzle. Therefore, the sight plane and the bullet leave the gun at 2 different points and intersect at whatever distance I'm zeroed in at. So, the bullet, in theory, is rising to meet the center of the crosshairs.

I'm gonna try to find a place to take a few 100 yard shots one of these days. If I don't mess up, the holes are touching each other at 50 yards. So they should be dang close at 100. But I know I need to prove it. Plus it would help my confidence a lot just to know I could do it.

Hey there is a free trial download of software called Shoot It, that you can download and check out. Search for it on google. My CVA MagBolt with 120 gr of pyrodex and a 300 grain Hornady SST is about 2.5 inches high at 100, and comes in about the 3 inch low mark at 180, if that helps any.
For the software, you need your FPS, Bullet weight, and BC.