All well and good for the 50cals bustr.
Dolby,
If your fingers aren't broken, and your computer has a calculator and an art program. Or the internet will tell you what division of 1 second 500m\sec and 720m\sec is if you and your calculator are not on speaking terms. Then update my picture or one from the K4 or 190 with slightly larger rings. I'll give you a starting place. And I believe where we and the Commonwealth used 1\6400 Mil units in WW2, the German optics was in Mrad, the Russians used 1\6000 as their Mil unit. Finland and Sweden used 1\6300. But, in Hitech's world it's 1unit@1000unit for everything. Hitech Unit of Mil (HUM).
AN\M2.50 cal and Hs404 20mm both reach 1000ft in .35sec+-. So 100Mil, 101Mil and 105Mil rings all are 100mph rings.
500m\sec = .60sec 100mph ring = 176Mil, Radius = 88Mil. MK108 30mm<--aiming outside the windscreen bars for snapshots.
610m\sec = .49sec 100mph ring = 144Mil, Radius = 72Mil. M4 37mm
720m\sec = .42sec 100mph ring = 124Mil, Radius = 62Mil. MG151/20 20mm<--why so many missed snapshots in FW and 109.
850m\sec = .35sec 100mph ring = 102Mil, Radius = 52Mil. AN\M2 50. M8 API<--Why spits rule for snap shots and
880m\sec = .34sec 100mph ring = 99.96Mil, Radi = 49.98Mil. Hs404 20mm<-----new player gunnery.
The 100mph main ring in WW2 was the standard across all of the combatants. It also describes the reality of WW2 air combat in real world physics. Opposed to how we play air Quake shooting from convoluted positions never dreamed of in WW2. If Germany had designed the MK108 for shooting at spitfires and other small fast maneuvering fighters with it's slow 500m\sec initial velocity. They would have moved the Revi gunsight to the center of the windscreen and projected a 175Mil ring and cross onto the wind screen. In the screen capture of the F4u, the largest blue ring is only 150Mil.
MG
Type97.7.7mm..750m/s...Bullet=13.2g
Brit.303......762m/s...Bullet=11.3g
MG17 7.92.....865m/s...Bullet=11.5g
MG131.13mm....750m/s...Bullet=76g
AN/M2.50......850m/s...Bullet=112g
UB-12.7.......850m/s...Bullet=64g
Type3 13.2....789m/s...Bullet=52g
20mm
Type 99-1..600m/s...Bullet=200g
MG151/20...720m/s...Bullet=205g
Ho-1 20mm..750m/s...Bullet=164g
Ho-5 20mm..750m/s...Bullet=84g
ShVAK 20mm.770m/s...Bullet=96g
Type 99-2..750m/s...Bullet=222g
Hs404 20mm.880m/s...Bullet=257g
30-37mm
Mk108 30mm.500m/s...Bullet=336g M-Gesch
M4-37mm....610m/s...Bullet=608g HE
Mk103 30mm.860m/s...Bullet=336g M-Gesch
NS-37 37mm.880m/s...Bullet=760g AP
NS-37 37mm.900m/s...Bullet=735g HE