Won't shoot to the point of aim

[Coyotefurharvester]

The ballistic turret is limited to one turn with the rings on the turret. You need to remove the rings to get the full travel available when sighting it in. Once sighted in you replace the turret rings.

RTFM

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Wasn't familiar with the scope, thought a zero stop was messing up the elevation range.

 

[bugman]

Just to be specific - the scope is a Swarovski Z5 5-25x52BT. One thing that I noticed that I can't explain is the scope is supposed to have 43moa of adjustment. The elevation turret has a bit less than one revolution of adjustment from one extreme to the other. I just counted the 1/4moa clicks and get 49 from the bottom to the top. That would put it at 12moa of adjustment.

The interesting thing is that there were no issues before the work was done.

The bore curvature and a lot of other cumulative issues resulted in you using some of that mechanical zero (as it comes from the factory). So, now you add some new requirements, and if you didnt go back to the mechanical zero, the scope may not have enough adjustment range. Happens all the time.
Besides, you should not have your erector maxed out....that is what 10 to 20 MOA rails are for.

 

[Charlie-NY]

The ballistic turret is limited to one turn with the rings on the turret. You need to remove the rings to get the full travel available when sighting it in. Once sighted in you replace the turret rings.

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The rifle scope has a custom Swarovski turret cap. The cap was removed and the base adjustment knob was used. The knob gets full travel as viewed through a bore sighting tool. Everything with the scope seems fine. I own two of these scopes and they both have similar travel.

 

[Charlie-NY]

Wasn't familiar with the scope, thought a zero stop was messing up the elevation range.

This particular scope does not have the zero stop feature.

 

[Charlie-NY]

Besides, you should not have your erector maxed out....that is what 10 to 20 MOA rails are for.

I agree. And the tapered base should provide considerably more elevation than I need at 400yds.
FWIW - I was shooting a Berger 140 EH at 2,760 fps.

 

[DShortt]

The ballistic turret is limited to one turn with the rings on the turret. You need to remove the rings to get the full travel available when sighting it in. Once sighted in you replace the turret rings.

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Here's your answer.

 

[Charlie-NY]

Here's your answer.

I need to revisit this again. The base adjustment knob has a thin wheel under it which is movable and I've never noticed it before nor have I used it in prior applications. This may have limited the travel and prevented me from getting more elevation. The adapter which lies between the base knob and the custom dial, locks the two base wheels together.

Thanks everyone for the feedback. This site reminds me of an old proverb:

"The more I know, the more I know that I don't know".

 

[WSnyder]

Swaro includes the little coin like tool with the scope to adjust your zero. I haven't owned one in awhile so I don't remember all of the permutations but if your follow the Eurooptic tutorial you should be able to get it right.

 

[DShortt]

I sent the smith a text and am waiting for his reply. A rough measurement of the scope base-to-slot reveals about a .030" difference with the rear being taller as it should be. How much elevation would that roughly equate to? It is the factory supplied Browning base for the LR McMillan rifle in 6.5 Creed.

If your base is .030" taller in the rear then your base is installed backwards.

Well, shucks. I thought I deleted this post but obviously I did not.

I sincerely apologize for the confusion I have apparently created, as much for myself as anyone else.

To be clear, a 20 MOA base should be taller in the rear than in the front. I made a mistake when I made this original post. Again, sorry for any confusion I have caused.

 

[DShortt]

No, it would seem that way but think about which way the horizontal crosshair moves to raise the point of impact and it will make sense.

 

[BoydAllen]

If your base is .030" taller in the rear then your base is installed backwards.

No, that is not correct. Imagine that the scope is held so that it is on the target. If you want the rifle to shoot higher with the scope in that position you would have to make the barrel point higher on the target. For that to happen the back of the scope needs to be raised relative to the action. You have it backwards.

 

[DShortt]

No, that is not correct. Imagine that the scope is held so that it is on the target. If you want the rifle to shoot higher with the scope in that position you would have to make the barrel point higher on the target. For that to happen the back of the scope needs to be raised relative to the action. You have it backwards.

I do not wish to argue, however I would appreciate constructive discussion.

The scope is set to a given point of aim, whatever it may be. The current base is removed and a base that is taller in the rear installed. Does that not require the barrel to be raised to return to the point of aim?

Yes, the point of impact will also raise, which is exactly what an elevated base is supposed to accomplish to my understanding.

If I'm backwards on this I'd appreciate it if you can tell me where my thinking is flawed. Just please don't throw me under the bus while doing so.

 

[Sniperhandle]

Here's your answer.

Good Job Dude!

 

[WSnyder]

If I'm backwards on this I'd appreciate it if you can tell me where my thinking is flawed. Just please don't throw me under the bus while doing so.

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[Sniperhandle]

I do not wish to argue, however I would appreciate constructive discussion.

The scope is set to a given point of aim, whatever it may be. The current base is removed and a base that is taller in the rear installed. Does that not require the barrel to be raised to return to the point of aim?

Yes, the point of impact will also raise, which is exactly what an elevated base is supposed to accomplish to my understanding.

If I'm backwards on this I'd appreciate it if you can tell me where my thinking is flawed. Just please don't throw me under the bus while doing so.

You can tell with the naked eye that a base with added Moa is always taller in the rear. I have shimmed Mosin bases in the rear to get the needed elevation to get out to 1000 yards long before Mosin bases were offered with added MOA.

When bore sighting through the bore, The turrets always are adjusted backwards to what it says on the turret, And the reticle moves down to bring point of impact up. Same principle for added MOA bases.

 

[AlNyhus]

A sloped base is higher in the rear than the front. In essence, it makes you 'point' the barrel higher with the same scope adjustment than a non-sloped base will. -Al

 

[joshb]

I thought Boyd’s explanation was spot on. I didn’t see where he threw you under the bus.

 

[DShortt]

I thought Boyd’s explanation was spot on. I didn’t see where he threw you under the bus.

He's correct. I thought I deleted an earlier post when I did not obviously. I've since edited that earlier post to note my mistake.

Boyd is an excellent source of information whom I highly respect. My 'throw me under the bus' comment was actually an attempt at humor. Sometimes my attempts at humor fail more miserably than others, as in this case.

Hopefully Boyd understands and once again, I apologize for the confusion I have created.

 

[joshb]

He's correct. I thought I deleted an earlier post when I did not obviously. I've since edited that earlier post to note my mistake.

Boyd is an excellent source of information whom I highly respect. My 'throw me under the bus' comment was actually an attempt at humor. Sometimes my attempts at humor fail more miserably than others, as in this case.

Hopefully Boyd understands and once again, I apologize for the confusion I have created.

No worries! I get confused easily, these days. I went to the range last fall and pondered a scope problem for an hour before I packed up the gun. Figured out I was thinking backwards at 3 in the morning.

 

[Bill Norris]

No worries! I get confused easily, these days. I went to the range last fall and pondered a scope problem for an hour before I packed up the gun. Figured out I was thinking backwards at 3 in the morning.

As we get older our thought process becomes a little foggy at times. Just have to back up and re-group to think things thru. LOL.