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Ezell barrel tuner interpreting results

6mmHot

I’m new to using a tuner so I could do with any tips.
I’ve had an Ezell tuner fitted to my .284 Shehane and have just got back from the range with results of my first tests.
In the attached image I started from the left at 0 (which in effect is nearly 1 turn out from the fully wound in position) I then shot 3 shot groups moving the Ezell out 3 divisions at a time. I did this until I reached a full rotation out and arrived at +30 on the tuner.
I got some interesting groups at 0, +6,+24 and +30
Just wondering how to interpret and where to go next, do I explore the flat vertical around 0 to +6 or to look at testing either side of group +24 ( I did have a few rounds left at the end of the test and +24 was a repeatable group)
IMG_0792.jpeg
Any advise would be appreciated
Thanks
David
 
6mmHot said:
I’m new to using a tuner so I could do with any tips.
I’ve had an Ezell tuner fitted to my .284 Shehane and have just got back from the range with results of my first tests.
In the attached image I started from the left at 0 (which in effect is nearly 1 turn out from the fully wound in position) I then shot 3 shot groups moving the Ezell out 3 divisions at a time. I did this until I reached a full rotation out and arrived at +30 on the tuner.
I got some interesting groups at 0, +6,+24 and +30
Just wondering how to interpret and where to go next, do I explore the flat vertical around 0 to +6 or to look at testing either side of group +24 ( I did have a few rounds left at the end of the test and +24 was a repeatable group)
View attachment 1564879
Any advise would be appreciated
Thanks
David
Click to expand...
I also use a Ezell tuner on one of my guns and agree with what other's have said in that you're moving the settings too much each time. Typically, my initial adjustments are one increment at a time (like, 1 to 2 to 3 to 4, etc). Then I'll choose the best result setting and move in fractions to get rid of issues like vertical dispersion.

Looking at just what I see on your target, I'd test some more around that 24 setting in small increments to see what it does. Then you might improve that and also see what you can do to compensate for conditions that change what you typically get on your target.
 
Straightshooter1 said:
I also use a Ezell tuner on one of my guns and agree with what other's have said in that you're moving the settings too much each time. Typically, my initial adjustments are one increment at a time (like, 1 to 2 to 3 to 4, etc). Then I'll choose the best result setting and move in fractions to get rid of issues like vertical dispersion.

Looking at just what I see on your target, I'd test some more around that 24 setting in small increments to see what it does. Then you might improve that and also see what you can do to compensate for conditions that change what you typically get on your target.
Click to expand...
Thanks for the advice I’ll certainly look down that road
 
Use your search button and read some of Mike’s post on how to use his tuner. As others have said, you should move it one mark at a time.

Start at 22 and shoot through 26. This should be enough to show the gun going in and out of tune, assuming you have tuned the load before you started turning the tuner; which leads me to ask, what did the groups look like before you moved the tuner?
 
One Mark at a time go slow make sure they are three shot groups and you will see the groups open up close together and then open again I am including a sample for you to look at, I use the bottom Target when I was filing the barrel give the barrel time to cool off after a few shots use wind Flags!!!
 

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Part of me wants someone else to mention this, but I want to help.

Despite the fact that I no longer use tuners, the advice would be the same while working seating depth or powder charge.

Assumption: RH twist barrel
Settings 0-6 have a distinct diagonal shape that is opposite of the AJ/Wind line. Most likely, you will find that those settings are not so good when you start shooting larger sample sizes like 20 round strings in F-class.

There is a chance that you might have skipped over a good setting in there, but I would advise working the area between 20 and 26 again in fine increments. 21 and 24 look like there might be something promising in that area.
 
Ccrider said:
Use your search button and read some of Mike’s post on how to use his tuner. As others have said, you should move it one mark at a time.

Start at 22 and shoot through 26. This should be enough to show the gun going in and out of tune, assuming you have tuned the load before you started turning the tuner; which leads me to ask, what did the groups look like before you moved the tuner?
Click to expand...
Thanks for the reply the load was developed with the tuner in the 0 position.
 
Keith Glasscock said:
Part of me wants someone else to mention this, but I want to help.

Despite the fact that I no longer use tuners, the advice would be the same while working seating depth or powder charge.

Assumption: RH twist barrel
Settings 0-6 have a distinct diagonal shape that is opposite of the AJ/Wind line. Most likely, you will find that those settings are not so good when you start shooting larger sample sizes like 20 round strings in F-class.

There is a chance that you might have skipped over a good setting in there, but I would advise working the area between 20 and 26 again in fine increments. 21 and 24 look like there might be something promising in that area.
Click to expand...
Thank you your input is appreciated that is where I’ll start to have a look.
 
6mmHot said:
Thanks for the reply the load was developed with the tuner in the 0 position.
Click to expand...
Since the 24 group repeated, based on your 0 group, the load was not in tune when you started your tuner test. My guess is that your powder charge needed to be increased. I would still shoot 22-26 and expect the groups to tighten as you go up.

One last thing, I see what could be wind influences in some of the groups. Were you using any type of flags?
 
Ccrider said:
Since the 24 group repeated, based on your 0 group, the load was not in tune when you started your tuner test. My guess is that your powder charge needed to be increased. I would still shoot 22-26 and expect the groups to tighten as you go up.

One last thing, I see what could be wind influences in some of the groups. Were you using any type of flags?
Click to expand...
Thanks my plan is to test 22-26 again.
To answer your question the range I shoot on is an old quarry and is renowned for swirling winds. Sadly there are no wind flags on this range
Kind regards
David
 
6mmHot said:
Thanks my plan is to test 22-26 again.
To answer your question the range I shoot on is an old quarry and is renowned for swirling winds. Sadly there are no wind flags on this range
Kind regards
David
Click to expand...
Make your own flags. Tie a piece of surveyors tape on a stick or trees etc. they don’t have to be fancy and will tell you what you need to know.
 
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