Leaky:

Single turn = only one turn of the turret to reach max adjustments.
They also have a double turn = two turns

It helps to know in the dark... I have a Leupold 16x40 with 140MOA up.. Thats like 8+ revolutions. Basically useless in the dark or dusk.


Focal plane : most likely a hang over from the description of a variable scope.
A fixed magnification scope is obviously only First focal.

The US in the last 40 years:

Socialism for big corporations and military industrial complex

&

Rugged individualism for the individual.