correcting crosshair Tiger

[pa4tim]

From a few hundred meter up to at least 3,45 km my Tiger hits 2 mill to much to the right.  Is this due to parallax or a "bug" ? I would expect a parallax caused deviation to the right upto some convergent point and to the left beyond that.  I can set the range but I can not adjust horizontal like I can in Russian tanks. 

 

A side question, how can I do rang finding in the Sherman ?  The triangles of the tiger are 2 and 4 mill, I use a table to convert that to distance, the KV1S seems to have a distance scale to measure/convert  tank height in km. The Sherman has nothing other as using the MG ?

[Finkeren]

28 minutes ago, pa4tim said:

Sherman has nothing other as using the MG ?

 

Correct. The manual directly states to use the coaxial as a rough aiming devise. Beyond the useful range of the MG, you are supposed to guess and correct based on where the first shot lands. 

[Yogiflight]

2 hours ago, pa4tim said:

From a few hundred meter up to at least 3,45 km my Tiger hits 2 mill to much to the right.  Is this due to parallax or a "bug" ? I would expect a parallax caused deviation to the right upto some convergent point and to the left beyond that.  I can set the range but I can not adjust horizontal like I can in Russian tanks. 

There is no convergence, they are parallel. So you should always place your aiming mark half a meter left of the spot, you want to hit. BTW how do you observe this in 3.45km distance?

[pa4tim]

Nothing scientific. I just did a quick mission. There where 4 howitzers far away.  I measured the range by shooting and adjusting the crosshair until the howitzer was dead. With that setting I killed all 4 of them.

I had to aim 2-3 mil to the right to hit them. The distance behind the triangle tops should be 4 mill . That is data I found a while back when I used the same crosshair in Warthunder) And if I use that scale on the shooting range mission, results are so that I think this is correct.

 

1 mill is 1 meter at  1000 m so 2 mil at 3000m is 6m  (if I do the calculation correct) And 2 mil at 500m should be 1 meter. If the sight is exact parallel it should be something like the 50 cm you mention, at any distance.  I have not measured all the distances because I always have to aim around 2 mill of. But after shooting the howitzers I was surprised I had to aim the 2 mill as well. And because  the other tanks  have adjustable X-axis I wondered if the Tiger has one too hidden somewhere. (tank controls are not yet "optimal")

[Yogiflight]

Your calculations are correct. 

No the Tiger, as all german tanks I think, didn't have an adjustable X-axis for the gun sight. You don't really need it, except for targets passing from left to right or vice versa. The gunner knows he has to aim a little left of the spot he wants to hit. And on larger distances the wind is much more something to be concerned about, than this fifty centimeters. BTW I don't care about those mils to know where to aim at the enemy tank, I just guess what is half a meter, this is not too difficult, you know how large those tanks are.

[SCG_Slater]

Me too, I got it by a rough estimation, sometimes it's spot on, other times it's a bit too short and to the right.

[pa4tim]

I "measure" the hight of the tank in mil and then use a table to set the range. Most times the first shot is spot on and if not I go from there by aiming higher or lower and then readjust the crosshair. I use the horizontal triangles only as reference when shooting a colonne of moving vehicles but sometimes also for range-finding.