In testing from 80 - 120 FoV, I found as your 100Mil gunsight reticle got smaller so did the tracer pixels unless you used zoom.
From my testing, a response in another post:
I tested 80, 100, 106, and 120 for the diameter on a 24inch monitor of a 100Mil diameter reticle. In a real cockpit, a 100Mil dia. reticle would be just about 2 inches at 18 inches from your face.
100Mil dia reticle ring at 18in(457.2mm) is 2in(50.8mm) in diameter.
80 FoV - 1.25 inch dia. 31.75mm
100 FoV - 1.00 inch dia. 25.4mm
106 FoV - 0.75 inch dia. 19.05mm
120 FoV - 0.625 inch dia. 15.875mm
As you lower your FoV towards 100, you gain back a few FPS and small yaw movements at 100 FoV for a 25.4mm 100Mil ring, are gigantic adjustments for a 120 or higher FoV 100Mil ring. Probably the foundational reason most gamers use only a dot reticle in this game.