100 yd zero hitting high at 200 yd

[jd palmer]

Parralax or scope is loosing its ability to hold zero (and moved after your shots at 100) would seem most likely. The only other thing I could even postulate would be your ranges are wrong. If you shot at 50 yards and 100 yards (instead of 100 and 200), the bullet would probably hit high like that. Certainly dont intend to insult your intelligence, just thinking about it from "cover all your bases" perspective. I assume you are positive the yardage is correct?

The closer you get the lower it will hit.

 

[73driver]

Not sure if the scope height being wrong would cause this. Is your scope height set correctly in your ballistic app?

 

[ajkellerusmc]

Memtb: C'mon man! A 6.5CM doesn't drop until past 1,000 yards anyway.

A 65 creedmoor actually climbs after it leaves the muzzle, I heard a guy behind the counter at cabela's say so!

 

[Shane Lindsey]

How much pressure are you exerting downward on the stock?

If "Heavy Head" this could affect the launch angle during recoil of the bullet and be more dramatic/pronounced at 200??? Meaning, if the rifle is not recoiling straight back, I have seen impacts climb.

Unless it was a creedmore.

 

[coop2564]

I've confirmed that a time traveler from the future went back in time with 6.5 CM and single handedly kill all dino's.

 

[73driver]

A 65 creedmoor actually climbs after it leaves the muzzle, I heard a guy behind the counter at cabela's say so!

The 6.5C and for that fact all bullets "climb" after leaving the muzzle. the bullets climb relative to a direct line of sight (assuming a good zero at say 100y or 200y etc) from the muzzle to the target. Now bullets drop relative to the line of the bore because gravity is acting on them from the start. Relative to the plane of the earth the bullet is climbing till it reaches its apex.

 

[bluejay75]

Bipod vs bags maybe?

 

[Deleted member 115360]

The 6.5C and for that fact all bullets "climb" after leaving the muzzle. the bullets climb relative to a direct line of sight (assuming a good zero at say 100y or 200y etc) from the muzzle to the target. Now bullets drop relative to the line of the bore because gravity is acting on them from the start. Relative to the plane of the earth the bullet is climbing till it reaches its apex.

You will just confuse people. Bullets don't climb, they begin falling the instant they leave the barrel and they fall until they stop moving.

Relativity to other things such as scope placement is irrelevant, bullets never "climb". I understand from what you said that you understand this, but your explanation might confuse someone who is new to this.

 

[Archer357]

Have your fun, that's cool. I'm having a problem here don't know what it is. A buddy is letting me borrow his scope mounting kit. My rings are vortex precision rings. Going to lap the rings double check alignment and recheck scope height measurement. Which I have done lots of times.

 

[1mechanic]

Shooting prone by chance are you shooting uphill?
What angle is the rifle to level?

 

[bluejay75]

What did you do from the time you zeroed. Did you use bipods for one and bags for the other?

Was your scope tight in the rings? If the scope slid forward under recoil that would move your groups high. You needed to be a little more specific so problems could be troubleshot.

Check the scope and see if you have drag marks on it. Im willing to wager that it was one of the two things I mentioned.

 

[Deleted member 115360]

Have your fun, that's cool. I'm having a problem here don't know what it is. A buddy is letting me borrow his scope mounting kit. My rings are vortex precision rings. Going to lap the rings double check alignment and recheck scope height measurement. Which I have done lots of times.

Some of us are trying to help my man. Did you go back to 100y and shoot again? What were the results. The mounting equipment won't be the problem unless it has shifted, which will become obvious if you go back to 100y and have a poi shift. Until you've determined that nothing moved, you are standing in the dark without a flashlight. Pulling it all apart and lapping the rings is about as likely to be the issue as some of the ridiculous proposals seen here. Your zeroing distance is a base to measure from. Nothing in your mounting hardware will cause a rifle to gain elevation from 100y to 200y. You're barking up the wrong tree there.

 

[Deleted member 115360]

And another thing, don't lap those vortex precision rings, or any other quality rings. I've never needed to lap a set of rings in my life.

What that lapping would do is make concentric alignment. If they were out of alignment, you'd have an entirely different issue, so just don't.

 

[Deleted member 115360]

Go to 100y and shoot a 5 shot group. Post that group. Then go to 200y and without touching your dials, shoot a 5 shot group. Post that group. We will tell you exactly what is happening if you do that. You can do it with 3 rounds at each spot if you can make tight groups, (I know how scarce ammo is).