I have noticed this effect for a while with addon weapons that have a suppressor that increases or decreases muzzle velocity.
The effect is most apparent at long ranges, hence the MAR-10 at 2000m, though past 400m +/- it starts to become noticeable.
The example screenshot was with the MAR-10 zeroed for a range of 2000m with no mods enabled. {F26049}
-Go into the virtual arsenal
-Equip the MAR-10 and suppressor
-Zero for 2000m and fire 5 rounds at the 2000m targets head
-Unequip the suppressor
-Fire 5 more rounds at the 2000m targets head
-Go downrage and look at how far off the suppressed shots are - look at the bullet-traces.
I think it has something to do with a scopes zeroing algorithm does not take into effect a suppressors or any muzzle devices MagazineCoef and AmmoCoef.
Example mod weapons suppressor:
class MagazineCoef
{
initSpeed = 1.1;
};
Real scopes do not have a feature to adjust your zeroing for a suppressor.
If you want to change your point of impact it would require to adjust elevation. I'm not sure how accurate this would be if taken into zeroing adjustment considering we're using subsonic rounds.
I think we just need to accept the fact that a suppressor decreases the effective range of your weapon.
Real scopes don't automatically zero for a set range either but that's how they work in Arma. Lets stop pretending Arma is a hardcore mil-realistic game shall we?
No its not automatic, you turn the nod just like you press page up.
I just think something like this might be too complex for the developers as there's a lot to take into consideration.
Just to be clear when you attach the suppressor, zero to 2000 and fire in the center of the target do your shots fall short or go over the target?
Mil turrets the ultimate solution.
I say its time they stop the silly 100m elevation zeroing.
They just need to factor in the suppressor. There is no reason why an RCO optic gets automatically zeroed to 300m on anything you slap it on, but throw on a suppressor and it's off.
Suppressors shouldn't change muzzle velocity in the first place. They don't in real life, so why should they in ArmA?
They actually do. Suppressors are known to shift the point of impact on a rifle by a ton.
First of all, shifting POI is a thing. Reducing muzzle velocity is something else. (Yes of course, changing muzzle velocity also changes POI...)
I can't speak for all types of suppressors on all types of firearms, BUT, in my experience, if suppressors change the POI, it's only by a very minute margin. Nowhere near "a ton". If the suppressors you use shift your POI that much, there's something wrong.
From my experience, the suppressors I use don't shift POI on the weapons they are intended for. And there's no difference on the chronograph.
The shift is as much as 12 minutes on some guns.
I can't remember which one but the sr25 or the m110 one of them is notorious for its poi shift when mounting a silencer its upwards of 12 moa.
It has less to do with the increase in muzzle velocity as much as the barrel harmonics changing.