High Initial Elevation

[dabeechman]

Hey all, quick question.

I was bored tonight and found that my elevation setting to zero at 100 yards takes an initial come up of 16.5moa. This only leaves me with 50ish moa of possible elevation.

How would I go about bringing my initial elevation setting closer to zero?

My current rifle has a built in picatinny rail, so I can't simply swap the rail out. My current mount is a nightforce unimount with a 20moa taper.

Thanks gents

 

[eric32]

question "is the gain worth the effort"

Why must you gain back the 16.5 lost during zero.

can you not use your scope to hold over 16.5 moa

1) get addtional 16.5 moa added to your unimount

2) get some burris rings with 35 moa of offset

 

[Ledd Slinger]

Burris Zee rings with inserts. Or...bed the scope in your current rings with JB Weld and a calculated shim in the rear.

 

[BigBlueandGoldie]

Something sounds wonky. What are the details of the scope/rifle?

 

[dabeechman]

Zel Customs
NF 8-32

Thanks for the suggestions gentlemen.

 

[ballison]

Hey all, quick question.

I was bored tonight and found that my elevation setting to zero at 100 yards takes an initial come up of 16.5moa. This only leaves me with 50ish moa of possible elevation.

How would I go about bringing my initial elevation setting closer to zero?

My current rifle has a built in picatinny rail, so I can't simply swap the rail out. My current mount is a nightforce unimount with a 20moa taper.

Thanks gents

Any chance you put the mount on backwards? Installed correctly, it should give you an additional 20 moa, not take it away. If you installed it correctly, that would mean that you would have a negitive 36 moa off the rail. Something is screwy.

Can you attach a pic of the system as mounted?

 

[jrm850]

If I read you right what you have sounds pretty good to me.

my reasoning:
1.You don't want to be bottomed out for zero because you will lose windage range also.
2. 50 minutes is plenty to get you past 1k yds with just about anything that will shoot that far.
3. You are only 3.25 minutes off of what would be considered perfect for a 20moa setup.

my .02

Jeff

 

[dkhunt14]

In a 50 cal. 50 minutes will get you way out there. Also some scopes have more then they advertise for elevation. Matt

 

[Ledd Slinger]

I guess we need some clarification. By scope zero, do you mean "optical center" of the elevation adjustment? Or are you calling "zero" the point at which the elevation know is bottomed out?

If talking optical center as zero, that would mean your scope has adjustment of a approximately 132 MOA (16.5 MOA come up, plus 50 MOA left means you must have the same amount of adjustment in the down direction). If meaning the elevation knob is bottomed out, you would have roughly 66 MOA total.

A MOA base is designed to get you its designated adjustment level below "optical center". Meaning, if you have a scope with 65 MOA of adjustment, a 20 MOA base should leave you with 52.5 MOA of elevation provided all the stars line up exactly perfect in the universe. A 65 MOA scope from optical center has 32.5 MOA up, and 32.5 MOA down. If you are trying to achieve the full 65 MOA of adjustment by zeroing the rifle at the very bottom of the 65 MOA total, you are risking over shooting that point and thus will always be shooting high at closer ranges. Does this make sense? So again, I think we need to really understand what exactly you are describing to us.

 

[fredo]

Any chance you put the mount on backwards? Installed correctly, it should give you an additional 20 moa, not take it away. If you installed it correctly, that would mean that you would have a negitive 36 moa off the rail. Something is screwy.

Can you attach a pic of the system as mounted?

+1
Make sure the Unimount is taper DOWN toward the muzzle.
Oriented like this: