Thread: [DFBHD] Baldo's New M60 Sight
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Old 07-25-2022, 08:23 AM
Oscarmike247 is offline Oscarmike247
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The BC value for 7.62 NATO 175gr is around 0.416.

Found a ballistic chart for m118lr that puts the drop at 60 inches at 500 yards. which is 152.5cm at 500m. muzzle velocity of 2650fps (807.75m/s) zeroed for 100m. But, who knows the conditions this is based on? Humidity, temperature, elevation...etc

Check this out:

here's a ballistic calculator...
https://www.hornady.com/team-hornady...alculators/#!/

I think the problem is that the game calculates the ballistics using the G1 model instead of G7(boat tail shaped bullet).

I plugged in the numbers to the calculator from my mod with MV = 807, weight = 175, BC = 0.416. using the G7 drag model and got a drop of 182cm at 500 meters with 100m zero. Which is pretty consistent to what I'm finding online.

I plugged in the same numbers to the calculator, but used the G1 drag model, and got a drop of around 230cm at 500. with the rifle zeroed at 100m.

So I loaded up my test range and took some shots at 500 meters on to my grid target with 100m elevation and shooting position level with center of target. and behold, almost exactly 230cm drop from point of aim, just as the ballistic calculator predicted under the G1 model.

So maybe we should adjust the drag in the game to account for this?
Not exactly sure how all of this works, but maybe theres a way to calculate the g1 BC value needed based on the g7?



Last edited by Oscarmike247; 07-25-2022 at 11:12 AM.
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