Don't worry about whether your iron sights are 1 inches above the bore, or .875 inches, or the scope is 1.5 inches or 1.7 inches.
Sight the rifle in at 25 yards, meaning a tiny 3-shot group dead center. Remember, if your sights are 1/4 MOA clicks, it takes 16 clicks to move 1 inch.
Then set the target at 100 yards and shoot three shots to find the point of aim. Adjust the windage, if necessary, to bring the group to the vertical center. Do not make a vertical adjustment on the sights.
Then move the targets to where you want it to be zeroed for hunting, say 200 yards. Again, shoot 3 shots to check the windage, and make a slight adjustment, if necessary, to bring the group to center.
Now move back to 100 yards and shoot 3 shots to see where the bullets are striking. Should be dead center line and up about 2 inches or so from the X-ring. Make a note.
Now shoot it at 50 yards and 25 yards to see how high you are.
So you won't be sighted in at 25 yards anymore, but maybe 0.2 inches high. Big deal! You can't see or hold that when hunting, and makes no difference to the game.
More importantly, if you think you might shoot at 250 or 300 yards, then shoot some groups on targets at 250 and 300 yards to verify the trajectory and your shooting ability at those ranges.
Done.
TFF! I didn't read the whole thread, but isn't the idea of sighting in at 25 yards to save time/ammo? WTF would anyone shoot at 25 yards, move to 100, then to 200, back to 100, then to 50, and back to 25? Seriously, I think you get more [bleep] up with each post!
