Re: best twilight scope?
I would seriously consider the IOR line of scopes, especially for light gathering capabilities.
While on a hog hunt last year, my son had his .243 with a fixed IOR tactical 10X 42mm scope and I was using my leuy Vari-X III tactical 6.5 X 20 - 50mm on my tactical rifle.
At dusk I was comparing the scopes for light gathering capabilities. The Leuy when set on 10 power and even on it's lowest 6.5 setting with it's big 50mm objective died 2 minutes earlier than the IOR with it's 42 mm objective.
That was just the light gathering capabilities. The optics are another story. The Leuy's aren't even in the same class as the IOR's.
Save your money and look at the IOR scopes, you won't be sorry.
Distance is not an issue, but the wind will make it interesting!