drops at 200 and 300 way more than supposed to be! 6mm cm hornady 108 factory ammo

[sdrawkcab]

I have 2 new rifles that shoot bug holes at 1 and 200 meters. I zero'd at 100m and get 3" drop at 200 and 16" at 325m. 108 eldm 2950 fps.
both guns do this. I don't understand.

 

[_Windrider_]

I have 2 new rifles that shoot bug holes at 1 and 200 meters. I zero'd at 100m and get 3" drop at 200 and 16" at 325m. 108 eldm 2950 fps.
both guns do this. I don't understand.

So what are your drops in mils at 200 and 325?

 

[lash]

That’s exactly what they should be shooting. I ran a quick trajectory for that load and bullet, but didn’t change yards to meters, just because.

First off: 100m = 109.4y, 209m = 218.7y, 325m = 355.4y

Here’s what I got:

It looks to me like those drops are dead on.

 

[lash]

Here’s what I used:

 

[_Windrider_]

@lash that’s kind of where is was going. Who cares what the drop is, that’s just fancy number stuff.

 

[lash]

And who measures drops in linear measurements anymore?

 

[_Windrider_]

And who measures drops in linear measurements anymore?

The same people spotting for you that said you missed by 6” to the right at 800 yards

 

[sdrawkcab]

2.14 and 3 and 12.14 and 16 seem significant to me as far as bc numbers are concerned but hey I just wanted to point out on paper they don't match very closely, sure... I can true, but the numbers don't seem close to what the book says they should be and that is why I asked. This was paper not steel. Thanks

 

[Malum Prohibitum]

2.14 and 3 and 12.14 and 16 seem significant to me as far as bc numbers are concerned but hey I just wanted to point out on paper they don't match very closely, sure... I can true, but the numbers don't seem close to what the book says they should be and that is why I asked. This was paper not steel. Thanks

You are not reading the solution chart correctly. It is in yards, not meters. Your 16" is at 325 meters, which is 355 yards. Go down the chart past 325 yards to 355, or 350 and 375, and you will find it should be about 16"

 

[lash]

The same people spotting for you that said you missed by 6” to the right at 800 yards

They were lying. I never missed by 6” at 800 yards.

 

[lash]

You are not reading the solution chart correctly. It is in yards, not meters. Your 16" is at 325 meters, which is 355 yards. Go down the chart past 325 yards to 355, or 350 and 375, and you will find it should be about 16"

you are at 219 and 355 yards on that chart.
Almost exactly 3” and 16” drop by the ballistic calculation.

See my original post.

2.14 and 3 and 12.14 and 16 seem significant to me as far as bc numbers are concerned but hey I just wanted to point out on paper they don't match very closely, sure... I can true, but the numbers don't seem close to what the book says they should be and that is why I asked. This was paper not steel. Thanks

This is correct. And at 200 meters or about 219 yards, the drop is exactly 3”.

 

[lash]

2.14 and 3 and 12.14 and 16 seem significant to me as far as bc numbers are concerned but hey I just wanted to point out on paper they don't match very closely, sure... I can true, but the numbers don't seem close to what the book says they should be and that is why I asked. This was paper not steel. Thanks

I think that you need to change the settings in your ballistics calculator to read in meters and not yards. I didn’t change mine for this exercise and stated that. Sorry for your confusion.

 

[lash]

…but the numbers don't seem close to what the book says they should be and that is why I asked.

What book or reference are you using?

Just try not to co-mingle the metric and imperial measurements. I think that may be where your confusion lies.

 

[sdrawkcab]

tyvm

 

[Shoots 700's]

Numbers look right on

 

[Lowlight]

What is Sight Height Alex,

The close ranges are off because the MV is super fast and the sight height is taller than the math