.25 calibre, with an infrared telescopic sight.

The first telescopic observation of Mars was by Galileo Galilei in 1610.

A man in a car parked there using a highpowered rifle with a telescopic sight could bring down any horse with a single shot.

Galileo innovated with telescopic lenses, and in 1609, he had refined a telescope until he had an instrument powerful enough to see distant objects in the sky with an accuracy no one had before him.

And then, he had better telescopic, more fine grain data in which he could figure out that as the Earth is going around faster according to Kepler's Laws than Saturn, then we catch up with it.

Although the idea that the planets orbited the Sun had been suggested many times, it was not until the 17th century that this view was supported by evidence from the first telescopic astronomical observations, performed by Galileo Galilei.

Shatterproof film on perimeter windows of the first four floors of the buildings in the complex as well as telescopic vehicular security barriers, which are hydraulically operated, have to be installed in order to ensure enhanced protection and prevent unauthorized access into the buildings

The sniper rifle itself could be based on a standard rifle (It's hard to define a sniper rifle by the fire modes as some latest designed sniper rifles are semi automatic fire, for example the M110) however, when fitted with a telescopic sight, it becomes a sniper rifle.

He had a good theory of planetary rings and how the solar system operated, and he had better telescopic, more fine grain data in which he could figure out that as the Earth is going around faster according to Kepler's Laws than Saturn, then we catch up with it.