In other news....
The piles of snow left by global warming and the snow plows make an excellent backstop for shooting the $99 Mouser. I have been shooting milk jugs laid on their sides. The brightly colored caps make fine, high definition targets.
I was a bummed to find I am hitting 3/4" above point-of-aim at 25 yards. My expectation was that I would be hitting on the money with a second zero of 200 yards.
The $99 (a month) Mouser wears a Lyman globe front sight. The line of sight is about 3/4" above the bore. Making use of Hornady's fine ballistic calculator shows 0.8" high at 25 yards can be expected to hit 2.5" high at 100 yards with a second zero at 170 yards.
The rule-of-thumb about being "on" at 25 yards is great advice for rifles with scopes. They typically have a line-of-sight 1.5 inches above the bore. It is a great starting point. As always, Your Mileage Will Vary and it pays to check how your weapon performs with your ammo when shot by you. It pays to repeatedly check.