AEA New Scope Zero Quesion

[CanMike]

Quick question. Finally had time to mount and setup my new discovery scope. It’s the PRS ED 5x25.

Mounted on AEA Challanget Pro LB

First shot with Elevation at default. Super low.

I had to adjust a full rotation of turret. 10mil

I double checked mounting etc. all solid. I still have about 16 mil elevation left. Zero was 40 yards.

I guess my question is why did I have to dial so much elevation. Is it because scope setup for center fire high velocity?

Or did I do something wrong?

 

[elh0102]

I'm not familiar with that rifle, but the barrel attachment design on many air rifles produces a low POI. There are good adjustable rings available to compensate, or you can shim the scope at the rear ring. I don't think you did anything wrong.

 

[Smok3y]

Quick question. Finally had time to mount and setup my new discovery scope. It’s the PRS ED 5x25.

Mounted on AEA Challanget Pro LB

First shot with Elevation at default. Super low.

I had to adjust a full rotation of turret. 10mil

I double checked mounting etc. all solid. I still have about 16 mil elevation left. Zero was 40 yards.

I guess my question is why did I have to dial so much elevation. Is it because scope setup for center fire high velocity?

Or did I do something wrong?


View attachment 540199

My first thought is that the factory MOA built into the scope rail is expecting this to be shot at longer ranges.

 

[357cal]

I think elh0102 is right, I use FX no limit rings and there is Eaglevision just to name 2 brands. What caliber pro do you have?

 

[John "spysir" Blount]

"First shot with Elevation at default" so right from the box correct? Center the scope (number of clicks) and see what you have then so you will know what's what. A full rotation in FT would not be unusual at all.
Just a thought.

John

 

[CanMike]

I think elh0102 is right, I use FX no limit rings and there is Eaglevision just to name 2 brands. What caliber pro do you have?

30 cal.

 

[CanMike]

"First shot with Elevation at default" so right from the box correct? Center the scope (number of clicks) and see what you have then so you will know what's what. A full rotation in FT would not be unusual at all.
Just a thought.

John

Thanks. Ya that’s what I did. Had to do pretty much full rotation to get POI up.

I’ll have to look at those other rings. I’m just using the ones that came with the scope. Still have 16 mil of elevation adjustments so not urgent as 16mil gets me almost to 300 yards.

I just found it weird that I had to dial so much.

 

[JimD]

If I switch to slugs in either of my guns from pellets they shoot several inches lower at 30 yards. It's too much to all be velocity. There is a little vibration set off by the release of air and it can affect where the muzzle is slightly.

I do not shim scope mounts but I do shim the rear mounting point of the picatinny rail if it's one piece. Aluminum soda can material is about 1/10 mm in thickness. A few layers can change what you need to correct with the scope. You can cut it to size with scissors

 

[rangur1]

What's the MOA of the top rail? Some brands offer 20-30 MOA and others have 0 MOA. The 0 MOA rails will definately have a low POI with the scope being optically centered out of the box. Now adjustable rings can make up a lot of MOA and enable you to keep your scope operating more closely to it's optical center.

 

[Sicumj]

I wouldn't worry about it. I usually space my rear ring with 2-3 pop can spacers or use Burris Signature Zee rings. I have 4 AEA rifles and some require spacing and some do not. Yours sounds OK to me.