I have very little information on the pistol. However I see that it is a Target or Match pistol. This tells me that it most likely only fires around 500 FPS like most match pistols. These pistols are not known for speed but are known for accuracy. That's why they are considered Match/Target pistols. As an example the NEW FAS 609 only has a velocity of 500 FPS but is dead accurate.
The only importer in the USA is Airguns of Arizona in Gilbert AZ.
There are: 604/12 = 50 feet 4 inches
1980 feet
604/9=67.1
There are 12 inches in a foot so 604 * 12 = 7248 inches
Six hundred four feet equals 16.777777777778 yards, or 16 yards two feet and 4.8 inches.
6500 sq feet = 604 sq metres (approx).
Seven Second Surgery was created in 604.
604 meters = 0.375 miles
604 ounces = 37.8 pounds
604 kilometers=375.3082 miles
A yard is a unit of distance. A square foot is a unit of area. The two units are therefore incompatible.
There are 25.4 millimetres in one inch. Therefore, rounded to two decimal places, 604 millimetres is equal to 604/25.4 = 23.78 inches.