Overwatch Laser Speed

So I have done a quick calc for the laser that the Giant Omnic fired, I hope that it would be something useful, I got the low and high ends, so here it is (The links are the images).

I also used this to find how much time passed for the laser to form, which turned out that it is around .01 seconds.

Laser Start:

Image = 1080x1920

Body length = 399.48px = 6.85 meters

Laser Diameter = 123.07 px = 2.11 meters

2 atan (tan (70/2) * (123.07/1080)) = 6.18 degrees

Beam Length = 562.36 px

(2.11/ 2) / (Tan (6.18 degrees/ 2)) = 19.543 meters

19.543 / .01 = 1954.3 m/s

Laser Finish (This Image I merged two parts of the same scene that was cut off from one point):

Laser Diameter = 20 px = 2.11 meters

Beam Length = 2000.19 px

2 atan (tan (70/2) * (20/1080)) = .52 degrees

(2.11/ 2) / (Tan (.52 degrees/ 2)) = 232.49 meters

232.49 / .01 = 23249 m/s

If we use an actual road in Paris (which looks like a wide, one-way road with Bus lanes road):

The road is 1332 meters long, and the Omnic and OW ship are from end to end, so I will use that.

1332 / .01 = 133200 m/s

The Final Results would be:

High End: 133200 m/s (Massively Hypersonic)

Mid End: 23249 m/s (High Hypersonic +)

Low End: 1954.3 m/s (Hypersonic)

Thoughts?