Rifle Scopes Need some help fellas

[Jick42]

A good frien of mine bought one of the new Trijicon Accupoint 5x20x50 rifle scopes this week. Have to admit, pretty impressed with the overall quality of the scope. I got it all mounted for him and we took it out today to sight it in and I ran into something I've never encountered before.
The scope has 47 MOA of total elevation, not alot but doable for what he is using it for. But the problem I have is it took 3 revolutions (36MOA) to get this sucker sighted in at 100yds. So this only leaves approximately 1 revolution 12 MOA of adjustment left. And the scope was so out of whack, to get the left and rights on target, I had to take it 4 full revolutions to the right.
If any one has any ideas what I may have done or if you've ever seen anything like this your alls knowledge and input would be most welcome. Thanks guys.

 

[mrbooks10]

Re: Need some help fellas

Just thinking out loud here, but how high to you have it mounted on the gun?

 

[Helmet]

Re: Need some help fellas

That can't be on straight. Hard to say without seeing it. Is this the first scope that's been on the rifle?

 

[Jick42]

Re: Need some help fellas

Mr Brooks, the scope is mounted on high rings, I think I could go down to mediums and have a touch a space. I wouldn't think it's high enough though to make that kind of difference.

Armchair, this is indeed the first scope on this rifle. I have the one- piece base tightened down with lock rite and the rings I've double and triple checked, I can't find a damn thing out of place of this thing.

 

[Helmet]

Re: Need some help fellas

If it's not obvious to you then it would probably perplex me as well. Do you you have another scope you can put in to see if it has the same problem? Maybe the holes for the base were not drilled right or something like that.

 

[Wesek]

Re: Need some help fellas

Are you positive the reticle was at the center of travel when you mounted the scope?

How did you verify the remaining travel?

Are you using a canted base?

It almost sounds like the rail is canted 20 moa backwards. I've never experienced this before, but if the base and rings check out o.k. I'd let Trijicon figure it out.

 

[Jick42]

Re: Need some help fellas

A canted base is not in use, as though only having 47 MOA of elevation I have highly recommended he get one. Once zeros in at 100yds, the scope was at three full revolutions, 12 MOA per revolution, so that put the scope at 36 MOA of the elevation, leaving only 11 MOA left in elevation.
I am baffled as hell. I've mounted many scopes and have never once had an issuer like this. I have checked, doubled checked and even took the damn thing off and started over again, and can't pick up on anything I may have Fuct up.

 

[Helmet]

Re: Need some help fellas

It's possible that something is machined wrong and it would be out of whack no matter what you did. It would be nice if you could drop another scope in to see if it was pointing weird also. Or put that scope on another rifle that you know has the base and rings on true. Either way, something to tell you if this is a problem with the scope or the mounts.

 

[TonyAngel]

Re: Need some help fellas

Jick, I think I'm misunderstanding something here. If the scope has a total of 47 minutes of adjustment range, how did you dial in 36 minutes of correction?

I mean, assuming that you started with the scope set in about the center of its adjustment range, that should have left you with about +/- 23 minutes of adjustment, so how did you wind up being able to dial in 36 minutes?

In any case, since this is the first time the rifle has been scoped, it could be anything from the scope possibly being defective, to the rail mounting holes on the receiver not being drilled right or the barrel may be on there crooked or something being up with the mounting hardware.

I'd start over again. Center both the elevation and windage knobs and then re-zero.